diff --git a/be/src/exec/CMakeLists.txt b/be/src/exec/CMakeLists.txt
index 84387d24733700..58468185156987 100644
--- a/be/src/exec/CMakeLists.txt
+++ b/be/src/exec/CMakeLists.txt
@@ -312,6 +312,7 @@ set(EXEC_FILES
     workgroup/pipeline_executor_set.cpp
     workgroup/pipeline_executor_set_manager.cpp
     workgroup/work_group.cpp
+    workgroup/mem_tracker_manager.cpp
     workgroup/scan_executor.cpp
     workgroup/scan_task_queue.cpp
     query_cache/multilane_operator.cpp
diff --git a/be/src/exec/workgroup/mem_tracker_manager.cpp b/be/src/exec/workgroup/mem_tracker_manager.cpp
new file mode 100644
index 00000000000000..37b5e9d9f100cb
--- /dev/null
+++ b/be/src/exec/workgroup/mem_tracker_manager.cpp
@@ -0,0 +1,54 @@
+// Copyright 2021-present StarRocks, Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "mem_tracker_manager.h"
+
+#include <memory>
+
+#include "runtime/exec_env.h"
+#include "runtime/mem_tracker.h"
+#include "work_group.h"
+
+namespace starrocks::workgroup {
+MemTrackerManager::MemTrackerPtr MemTrackerManager::get_parent_mem_tracker(const WorkGroupPtr& wg) {
+    if (WorkGroup::DEFAULT_MEM_POOL == wg->mem_pool()) {
+        return GlobalEnv::GetInstance()->query_pool_mem_tracker_shared();
+    }
+
+    const double mem_limit_fraction = wg->mem_limit();
+    const int64_t memory_limit_bytes =
+            static_cast<int64_t>(GlobalEnv::GetInstance()->query_pool_mem_tracker()->limit() * mem_limit_fraction);
+
+    // Frontend (FE) validation ensures that active resource groups (RGs) sharing
+    // the same mem_pool also have the same mem_limit.
+    if (_shared_mem_trackers.contains(wg->mem_pool())) {
+        // We must handle an edge case:
+        // 1. All RGs using a specific mem_pool are deleted.
+        // 2. The shared tracker for that pool remains cached here.
+        // 3. A new RG is created with the same mem_pool name but a different mem_limit.
+        // Therefore, we must verify the cached tracker's limit matches the current RG's limit.
+        if (auto& shared_mem_tracker = _shared_mem_trackers.at(wg->mem_pool());
+            shared_mem_tracker->limit() == memory_limit_bytes) {
+            return shared_mem_tracker;
+        }
+    }
+
+    auto shared_mem_tracker =
+            std::make_shared<MemTracker>(MemTrackerType::RESOURCE_GROUP_SHARED_MEMORY_POOL, memory_limit_bytes,
+                                         wg->mem_pool(), GlobalEnv::GetInstance()->query_pool_mem_tracker());
+
+    _shared_mem_trackers.insert_or_assign(wg->mem_pool(), shared_mem_tracker);
+    return shared_mem_tracker;
+}
+} // namespace starrocks::workgroup
\ No newline at end of file
diff --git a/be/src/exec/workgroup/mem_tracker_manager.h b/be/src/exec/workgroup/mem_tracker_manager.h
new file mode 100644
index 00000000000000..ab781a81524aa7
--- /dev/null
+++ b/be/src/exec/workgroup/mem_tracker_manager.h
@@ -0,0 +1,31 @@
+// Copyright 2021-present StarRocks, Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#pragma once
+
+#include <memory>
+
+#include "runtime/mem_tracker.h"
+#include "work_group_fwd.h"
+
+namespace starrocks::workgroup {
+struct MemTrackerManager {
+public:
+    using MemTrackerPtr = std::shared_ptr<MemTracker>;
+    MemTrackerPtr get_parent_mem_tracker(const WorkGroupPtr& wg);
+
+private:
+    std::unordered_map<std::string, MemTrackerPtr> _shared_mem_trackers{};
+};
+} // namespace starrocks::workgroup
diff --git a/be/src/exec/workgroup/work_group.cpp b/be/src/exec/workgroup/work_group.cpp
index 27761fe560bac1..610c1515c713e1 100644
--- a/be/src/exec/workgroup/work_group.cpp
+++ b/be/src/exec/workgroup/work_group.cpp
@@ -18,10 +18,12 @@
 
 #include "common/config.h"
 #include "exec/pipeline/pipeline_driver_executor.h"
+#include "exec/workgroup/mem_tracker_manager.h"
 #include "exec/workgroup/pipeline_executor_set.h"
 #include "exec/workgroup/scan_task_queue.h"
 #include "glog/logging.h"
 #include "runtime/exec_env.h"
+#include "runtime/mem_tracker.h"
 #include "util/cpu_info.h"
 #include "util/metrics.h"
 #include "util/starrocks_metrics.h"
@@ -96,7 +98,7 @@ RunningQueryToken::~RunningQueryToken() {
 }
 
 WorkGroup::WorkGroup(std::string name, int64_t id, int64_t version, size_t cpu_limit, double memory_limit,
-                     size_t concurrency, double spill_mem_limit_threshold, WorkGroupType type)
+                     size_t concurrency, double spill_mem_limit_threshold, WorkGroupType type, std::string mem_pool)
         : _name(std::move(name)),
           _id(id),
           _version(version),
@@ -105,6 +107,7 @@ WorkGroup::WorkGroup(std::string name, int64_t id, int64_t version, size_t cpu_l
           _memory_limit(memory_limit),
           _concurrency_limit(concurrency),
           _spill_mem_limit_threshold(spill_mem_limit_threshold),
+          _mem_pool(std::move(mem_pool)),
           _driver_sched_entity(this),
           _scan_sched_entity(this),
           _connector_scan_sched_entity(this) {}
@@ -154,6 +157,11 @@ WorkGroup::WorkGroup(const TWorkGroup& twg)
     if (twg.__isset.spill_mem_limit_threshold) {
         _spill_mem_limit_threshold = twg.spill_mem_limit_threshold;
     }
+    if (twg.__isset.mem_pool) {
+        _mem_pool = twg.mem_pool;
+    } else {
+        _mem_pool = DEFAULT_MEM_POOL;
+    }
 }
 
 TWorkGroup WorkGroup::to_thrift() const {
@@ -182,13 +190,20 @@ TWorkGroup WorkGroup::to_thrift_verbose() const {
     return twg;
 }
 
-void WorkGroup::init() {
-    _memory_limit_bytes = _memory_limit == ABSENT_MEMORY_LIMIT
-                                  ? GlobalEnv::GetInstance()->query_pool_mem_tracker()->limit()
-                                  : GlobalEnv::GetInstance()->query_pool_mem_tracker()->limit() * _memory_limit;
+void WorkGroup::init(std::shared_ptr<MemTracker>& parent_mem_tracker) {
+    if (parent_mem_tracker->type() == MemTrackerType::RESOURCE_GROUP_SHARED_MEMORY_POOL) {
+        _memory_limit_bytes = parent_mem_tracker->limit();
+        _shared_mem_tracker = parent_mem_tracker;
+    } else {
+        _memory_limit_bytes = _memory_limit == ABSENT_MEMORY_LIMIT ? parent_mem_tracker->limit()
+                                                                   : parent_mem_tracker->limit() * _memory_limit;
+    }
+
     _spill_mem_limit_bytes = _spill_mem_limit_threshold * _memory_limit_bytes;
+
+    //todo (m.bogusz) MemTracker can only handle raw ptr parent so we need to add parent_mem_tracker as member to workgroup
     _mem_tracker = std::make_shared<MemTracker>(MemTrackerType::RESOURCE_GROUP, _memory_limit_bytes, _name,
-                                                GlobalEnv::GetInstance()->query_pool_mem_tracker());
+                                                parent_mem_tracker.get());
     _mem_tracker->set_reserve_limit(_spill_mem_limit_bytes);
 
     _driver_sched_entity.set_queue(std::make_unique<pipeline::QuerySharedDriverQueue>(
@@ -275,7 +290,7 @@ void WorkGroup::copy_metrics(const WorkGroup& rhs) {
 // ------------------------------------------------------------------------------------
 
 WorkGroupManager::WorkGroupManager(PipelineExecutorSetConfig executors_manager_conf)
-        : _executors_manager(this, std::move(executors_manager_conf)) {}
+        : _executors_manager(this, std::move(executors_manager_conf)), _shared_mem_tracker_manager{} {}
 
 WorkGroupManager::~WorkGroupManager() = default;
 
@@ -549,7 +564,8 @@ void WorkGroupManager::create_workgroup_unlocked(const WorkGroupPtr& wg, UniqueL
         return;
     }
 
-    wg->init();
+    auto parent_mem_tracker = _shared_mem_tracker_manager.get_parent_mem_tracker(wg);
+    wg->init(parent_mem_tracker);
     _workgroups[unique_id] = wg;
 
     _sum_cpu_weight += wg->cpu_weight();
@@ -690,7 +706,8 @@ std::shared_ptr<WorkGroup> DefaultWorkGroupInitialization::create_default_workgr
     const double memory_limit = 1.0;
     const double spill_mem_limit_threshold = 1.0; // not enable spill mem limit threshold
     return std::make_shared<WorkGroup>("default_wg", WorkGroup::DEFAULT_WG_ID, WorkGroup::DEFAULT_VERSION, cpu_limit,
-                                       memory_limit, 0, spill_mem_limit_threshold, WorkGroupType::WG_DEFAULT);
+                                       memory_limit, 0, spill_mem_limit_threshold, WorkGroupType::WG_DEFAULT,
+                                       WorkGroup::DEFAULT_MEM_POOL);
 }
 
 std::shared_ptr<WorkGroup> DefaultWorkGroupInitialization::create_default_mv_workgroup() {
@@ -700,7 +717,6 @@ std::shared_ptr<WorkGroup> DefaultWorkGroupInitialization::create_default_mv_wor
     double mv_spill_mem_limit_threshold = config::default_mv_resource_group_spill_mem_limit_threshold;
     return std::make_shared<WorkGroup>("default_mv_wg", WorkGroup::DEFAULT_MV_WG_ID, WorkGroup::DEFAULT_MV_VERSION,
                                        mv_cpu_limit, mv_memory_limit, mv_concurrency_limit,
-                                       mv_spill_mem_limit_threshold, WorkGroupType::WG_MV);
+                                       mv_spill_mem_limit_threshold, WorkGroupType::WG_MV, WorkGroup::DEFAULT_MEM_POOL);
 }
-
 } // namespace starrocks::workgroup
diff --git a/be/src/exec/workgroup/work_group.h b/be/src/exec/workgroup/work_group.h
index 06333c17c756b3..7c297ac01d7cbf 100644
--- a/be/src/exec/workgroup/work_group.h
+++ b/be/src/exec/workgroup/work_group.h
@@ -23,6 +23,7 @@
 #include "exec/pipeline/pipeline_driver_queue.h"
 #include "exec/pipeline/query_context.h"
 #include "exec/workgroup/work_group_fwd.h"
+#include "mem_tracker_manager.h"
 #include "pipeline_executor_set_manager.h"
 #include "runtime/mem_tracker.h"
 #include "storage/olap_define.h"
@@ -114,11 +115,11 @@ using RunningQueryTokenPtr = std::unique_ptr<RunningQueryToken>;
 class WorkGroup : public std::enable_shared_from_this<WorkGroup> {
 public:
     WorkGroup(std::string name, int64_t id, int64_t version, size_t cpu_weight, double memory_limit, size_t concurrency,
-              double spill_mem_limit_threshold, WorkGroupType type);
+              double spill_mem_limit_threshold, WorkGroupType type, std::string mem_pool);
     explicit WorkGroup(const TWorkGroup& twg);
     ~WorkGroup() = default;
 
-    void init();
+    void init(std::shared_ptr<MemTracker>& parent_mem_tracker);
 
     TWorkGroup to_thrift() const;
     TWorkGroup to_thrift_verbose() const;
@@ -128,6 +129,7 @@ class WorkGroup : public std::enable_shared_from_this<WorkGroup> {
     void copy_metrics(const WorkGroup& rhs);
 
     MemTracker* mem_tracker() { return _mem_tracker.get(); }
+
     std::shared_ptr<MemTracker> grab_mem_tracker() { return _mem_tracker; }
     const MemTracker* mem_tracker() const { return _mem_tracker.get(); }
     MemTracker* connector_scan_mem_tracker() { return _connector_scan_mem_tracker.get(); }
@@ -137,7 +139,7 @@ class WorkGroup : public std::enable_shared_from_this<WorkGroup> {
     const std::string& name() const { return _name; }
     size_t cpu_weight() const { return _cpu_weight; }
     size_t exclusive_cpu_cores() const { return _exclusive_cpu_cores; }
-    size_t mem_limit() const { return _memory_limit; }
+    double mem_limit() const { return _memory_limit; }
     int64_t mem_limit_bytes() const { return _memory_limit_bytes; }
 
     int64_t mem_consumption_bytes() const { return _mem_tracker == nullptr ? 0L : _mem_tracker->consumption(); }
@@ -198,7 +200,7 @@ class WorkGroup : public std::enable_shared_from_this<WorkGroup> {
     int64_t big_query_scan_rows_limit() const { return _big_query_scan_rows_limit; }
     void incr_cpu_runtime_ns(int64_t delta_ns) { _cpu_runtime_ns += delta_ns; }
     int64_t cpu_runtime_ns() const { return _cpu_runtime_ns; }
-
+    std::string mem_pool() const { return _mem_pool; }
     void set_shared_executors(PipelineExecutorSet* executors) { _executors = executors; }
     void set_exclusive_executors(std::unique_ptr<PipelineExecutorSet> executors) {
         _exclusive_executors = std::move(executors);
@@ -212,6 +214,7 @@ class WorkGroup : public std::enable_shared_from_this<WorkGroup> {
     static constexpr int64 DEFAULT_MV_WG_ID = 1;
     static constexpr int64 DEFAULT_VERSION = 0;
     static constexpr int64 DEFAULT_MV_VERSION = 1;
+    inline static std::string DEFAULT_MEM_POOL{"default_mem_pool"};
 
     // Yield scan io task when maximum time in nano-seconds has spent in current execution round.
     static constexpr int64_t YIELD_MAX_TIME_SPENT = 100'000'000L;
@@ -240,7 +243,9 @@ class WorkGroup : public std::enable_shared_from_this<WorkGroup> {
     double _spill_mem_limit_threshold = 1.0;
     int64_t _spill_mem_limit_bytes = -1;
 
+    std::string _mem_pool;
     std::shared_ptr<MemTracker> _mem_tracker = nullptr;
+    std::shared_ptr<MemTracker> _shared_mem_tracker = nullptr;
     std::shared_ptr<MemTracker> _connector_scan_mem_tracker = nullptr;
 
     WorkGroupDriverSchedEntity _driver_sched_entity;
@@ -330,7 +335,7 @@ class WorkGroupManager {
     std::list<int128_t> _workgroup_expired_versions;
 
     std::atomic<size_t> _sum_cpu_weight = 0;
-
+    MemTrackerManager _shared_mem_tracker_manager;
     std::once_flag init_metrics_once_flag;
     std::unordered_map<std::string, WorkGroupMetricsPtr> _wg_metrics;
 };
diff --git a/be/src/runtime/exec_env.h b/be/src/runtime/exec_env.h
index f735fb22a25330..42afa8cd95a96a 100644
--- a/be/src/runtime/exec_env.h
+++ b/be/src/runtime/exec_env.h
@@ -131,6 +131,7 @@ class GlobalEnv {
 
     MemTracker* process_mem_tracker() { return _process_mem_tracker.get(); }
     MemTracker* query_pool_mem_tracker() { return _query_pool_mem_tracker.get(); }
+    std::shared_ptr<MemTracker> query_pool_mem_tracker_shared() { return _query_pool_mem_tracker; }
     MemTracker* connector_scan_pool_mem_tracker() { return _connector_scan_pool_mem_tracker.get(); }
     MemTracker* load_mem_tracker() { return _load_mem_tracker.get(); }
     MemTracker* metadata_mem_tracker() { return _metadata_mem_tracker.get(); }
diff --git a/be/src/runtime/mem_tracker.cpp b/be/src/runtime/mem_tracker.cpp
index eacf0a9324a420..ed54f909860e35 100644
--- a/be/src/runtime/mem_tracker.cpp
+++ b/be/src/runtime/mem_tracker.cpp
@@ -272,6 +272,9 @@ std::string MemTracker::err_msg(const std::string& msg, RuntimeState* state) con
                 << "You can change the limit by modifying [mem_limit] of this group";
         }
         break;
+    case MemTrackerType::RESOURCE_GROUP_SHARED_MEMORY_POOL:
+        str << "Mem usage has exceed the limit of resource group memory pool [" << label() << "]. ";
+        break;
     case MemTrackerType::RESOURCE_GROUP_BIG_QUERY:
         str << "Mem usage has exceed the big query limit of the resource group [" << label() << "]. "
             << "You can change the limit by modifying [big_query_mem_limit] of this group";
diff --git a/be/src/runtime/mem_tracker.h b/be/src/runtime/mem_tracker.h
index 95335c5c0b21fb..11f0982fa24569 100644
--- a/be/src/runtime/mem_tracker.h
+++ b/be/src/runtime/mem_tracker.h
@@ -90,6 +90,7 @@ enum class MemTrackerType {
     SCHEMA_CHANGE_TASK,
     SCHEMA_CHANGE,
     RESOURCE_GROUP,
+    RESOURCE_GROUP_SHARED_MEMORY_POOL,
     RESOURCE_GROUP_BIG_QUERY,
     JEMALLOC,
     PASSTHROUGH,
diff --git a/be/test/CMakeLists.txt b/be/test/CMakeLists.txt
index 347317880ba6c2..0fd0f7645ede1f 100644
--- a/be/test/CMakeLists.txt
+++ b/be/test/CMakeLists.txt
@@ -59,6 +59,8 @@ set(EXEC_FILES
         ./exec/paimon/paimon_delete_file_builder_test.cpp
         ./exec/workgroup/scan_task_queue_test.cpp
         ./exec/workgroup/pipeline_executor_set_test.cpp
+        ./exec/workgroup/work_group_manager_test.cpp
+        ./exec/workgroup/mem_tracker_manager_test.cpp
         ./exec/pipeline/schedule/observer_test.cpp
         ./exec/pipeline/pipeline_control_flow_test.cpp
         ./exec/pipeline/pipeline_driver_queue_test.cpp
diff --git a/be/test/exec/pipeline/mem_limited_chunk_queue_test.cpp b/be/test/exec/pipeline/mem_limited_chunk_queue_test.cpp
index d558f966694ab5..7d633a958f4c34 100644
--- a/be/test/exec/pipeline/mem_limited_chunk_queue_test.cpp
+++ b/be/test/exec/pipeline/mem_limited_chunk_queue_test.cpp
@@ -39,11 +39,11 @@ class MemLimitedChunkQueueTest : public ::testing::Test {
         auto fs = FileSystem::Default();
         ASSERT_OK(fs->create_dir_recursive(path));
         LOG(INFO) << "path: " << path;
-
-        dummy_wg = std::make_shared<workgroup::WorkGroup>("default_wg", workgroup::WorkGroup::DEFAULT_WG_ID,
-                                                          workgroup::WorkGroup::DEFAULT_VERSION, 4, 100.0, 0, 1.0,
-                                                          workgroup::WorkGroupType::WG_DEFAULT);
-        dummy_wg->init();
+        auto parent = GlobalEnv::GetInstance()->query_pool_mem_tracker_shared();
+        dummy_wg = std::make_shared<workgroup::WorkGroup>(
+                "default_wg", workgroup::WorkGroup::DEFAULT_WG_ID, workgroup::WorkGroup::DEFAULT_VERSION, 4, 100.0, 0,
+                1.0, workgroup::WorkGroupType::WG_DEFAULT, workgroup::WorkGroup::DEFAULT_MEM_POOL);
+        dummy_wg->init(parent);
         dummy_wg->set_shared_executors(ExecEnv::GetInstance()->workgroup_manager()->shared_executors());
 
         dummy_dir_mgr = std::make_unique<spill::DirManager>();
diff --git a/be/test/exec/pipeline/pipeline_driver_queue_test.cpp b/be/test/exec/pipeline/pipeline_driver_queue_test.cpp
index 142b5bea758bad..6cc007280008ed 100644
--- a/be/test/exec/pipeline/pipeline_driver_queue_test.cpp
+++ b/be/test/exec/pipeline/pipeline_driver_queue_test.cpp
@@ -174,13 +174,17 @@ class WorkGroupDriverQueueTest : public ::testing::Test {
 public:
     void SetUp() override {
         _wg1 = std::make_shared<workgroup::WorkGroup>("wg100", 100, workgroup::WorkGroup::DEFAULT_VERSION, 1, 0.5, 10,
-                                                      1.0, workgroup::WorkGroupType::WG_NORMAL);
+                                                      1.0, workgroup::WorkGroupType::WG_NORMAL,
+                                                      workgroup::WorkGroup::DEFAULT_MEM_POOL);
         _wg2 = std::make_shared<workgroup::WorkGroup>("wg200", 200, workgroup::WorkGroup::DEFAULT_VERSION, 2, 0.5, 10,
-                                                      1.0, workgroup::WorkGroupType::WG_NORMAL);
+                                                      1.0, workgroup::WorkGroupType::WG_NORMAL,
+                                                      workgroup::WorkGroup::DEFAULT_MEM_POOL);
         _wg3 = std::make_shared<workgroup::WorkGroup>("wg300", 300, workgroup::WorkGroup::DEFAULT_VERSION, 1, 0.5, 10,
-                                                      1.0, workgroup::WorkGroupType::WG_NORMAL);
+                                                      1.0, workgroup::WorkGroupType::WG_NORMAL,
+                                                      workgroup::WorkGroup::DEFAULT_MEM_POOL);
         _wg4 = std::make_shared<workgroup::WorkGroup>("wg400", 400, workgroup::WorkGroup::DEFAULT_VERSION, 1, 0.5, 10,
-                                                      1.0, workgroup::WorkGroupType::WG_NORMAL);
+                                                      1.0, workgroup::WorkGroupType::WG_NORMAL,
+                                                      workgroup::WorkGroup::DEFAULT_MEM_POOL);
         _wg1 = ExecEnv::GetInstance()->workgroup_manager()->add_workgroup(_wg1);
         _wg2 = ExecEnv::GetInstance()->workgroup_manager()->add_workgroup(_wg2);
         _wg3 = ExecEnv::GetInstance()->workgroup_manager()->add_workgroup(_wg3);
diff --git a/be/test/exec/pipeline/query_context_manger_test.cpp b/be/test/exec/pipeline/query_context_manger_test.cpp
index 37e7d34637a8fe..243ec5c2b4dab4 100644
--- a/be/test/exec/pipeline/query_context_manger_test.cpp
+++ b/be/test/exec/pipeline/query_context_manger_test.cpp
@@ -277,9 +277,9 @@ TEST(QueryContextManagerTest, testSetWorkgroup) {
     auto query_ctx_mgr = std::make_shared<QueryContextManager>(6);
     ASSERT_TRUE(query_ctx_mgr->init().ok());
 
-    workgroup::WorkGroupPtr wg = std::make_shared<workgroup::WorkGroup>("wg1", 1, 1, 1, 1, 1 /* concurrency_limit */,
-                                                                        1.0 /* spill_mem_limit_threshold */,
-                                                                        workgroup::WorkGroupType::WG_NORMAL);
+    workgroup::WorkGroupPtr wg = std::make_shared<workgroup::WorkGroup>(
+            "wg1", 1, 1, 1, 1, 1 /* concurrency_limit */, 1.0 /* spill_mem_limit_threshold */,
+            workgroup::WorkGroupType::WG_NORMAL, workgroup::WorkGroup::DEFAULT_MEM_POOL);
 
     auto* query_ctx1 = gen_query_ctx(parent_mem_tracker.get(), query_ctx_mgr.get(), 0, 1, 3, 60, 300);
     auto* query_ctx_overloaded = gen_query_ctx(parent_mem_tracker.get(), query_ctx_mgr.get(), 1, 2, 3, 60, 300);
diff --git a/be/test/exec/workgroup/mem_tracker_manager_test.cpp b/be/test/exec/workgroup/mem_tracker_manager_test.cpp
new file mode 100644
index 00000000000000..8624e9980cbeaf
--- /dev/null
+++ b/be/test/exec/workgroup/mem_tracker_manager_test.cpp
@@ -0,0 +1,53 @@
+// Copyright 2021-present StarRocks, Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "exec/workgroup/mem_tracker_manager.h"
+
+#include <gtest/gtest.h>
+
+#include "exec/workgroup/work_group.h"
+#include "testutil/parallel_test.h"
+
+namespace starrocks::workgroup {
+PARALLEL_TEST(MemTrackerMangerTest, test_mem_tracker_for_default_mem_pool) {
+    MemTrackerManager manager;
+    const auto work_group{std::make_shared<WorkGroup>("default_wg", 123, WorkGroup::DEFAULT_VERSION, 1, 0.5, 0, 0.9,
+                                                      WorkGroupType::WG_DEFAULT, WorkGroup::DEFAULT_MEM_POOL)};
+
+    const auto tracker{manager.get_parent_mem_tracker(work_group)};
+    ASSERT_EQ(tracker, GlobalEnv::GetInstance()->query_pool_mem_tracker_shared());
+}
+
+PARALLEL_TEST(MemTrackerMangerTest, test_mem_tracker_for_custom_mem_pool) {
+    MemTrackerManager manager;
+    const auto work_group1{std::make_shared<WorkGroup>("wg_1", 123, WorkGroup::DEFAULT_VERSION, 1, 0.5, 0, 0.9,
+                                                       WorkGroupType::WG_DEFAULT, "test_pool")};
+    const auto work_group2{std::make_shared<WorkGroup>("wg_2", 134, WorkGroup::DEFAULT_VERSION, 1, 0.5, 0, 0.9,
+                                                       WorkGroupType::WG_DEFAULT, "test_pool")};
+    const auto work_group3{std::make_shared<WorkGroup>("wg_2", 134, WorkGroup::DEFAULT_VERSION, 1, 0.5, 0, 0.9,
+                                                       WorkGroupType::WG_DEFAULT, "other_pool")};
+
+    ASSERT_EQ(manager.get_parent_mem_tracker(work_group1), manager.get_parent_mem_tracker(work_group2));
+    ASSERT_NE(manager.get_parent_mem_tracker(work_group1), manager.get_parent_mem_tracker(work_group3));
+}
+PARALLEL_TEST(MemTrackerMangerTest, test_mem_tracker_for_custom_mem_pool_overwrite) {
+    MemTrackerManager manager;
+    const auto work_group1{std::make_shared<WorkGroup>("wg_1", 123, WorkGroup::DEFAULT_VERSION, 1, 0.5, 0, 0.9,
+                                                       WorkGroupType::WG_DEFAULT, "test_pool")};
+    const auto work_group2{std::make_shared<WorkGroup>("wg_2", 134, WorkGroup::DEFAULT_VERSION, 1, 0.7, 0, 0.9,
+                                                       WorkGroupType::WG_DEFAULT, "test_pool")};
+
+    ASSERT_NE(manager.get_parent_mem_tracker(work_group1), manager.get_parent_mem_tracker(work_group2));
+}
+} // namespace starrocks::workgroup
diff --git a/be/test/exec/workgroup/work_group_manager_test.cpp b/be/test/exec/workgroup/work_group_manager_test.cpp
new file mode 100644
index 00000000000000..9d0df8aae67216
--- /dev/null
+++ b/be/test/exec/workgroup/work_group_manager_test.cpp
@@ -0,0 +1,85 @@
+// Copyright 2021-present StarRocks, Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <gtest/gtest.h>
+
+#include "exec/workgroup/work_group.h"
+#include "runtime/mem_tracker.h"
+#include "testutil/parallel_test.h"
+
+namespace starrocks::workgroup {
+TWorkGroup create_twg(const int64_t id, const int64_t version, const std::string& name, const std::string& mem_pool,
+                      const double mem_limit) {
+    TWorkGroup twg;
+    twg.__set_id(id);
+    twg.__set_version(version);
+    twg.__set_name(name);
+    twg.__set_mem_pool(mem_pool);
+    twg.__set_mem_limit(mem_limit);
+    return twg;
+}
+
+PARALLEL_TEST(WorkGroupManagerTest, add_workgroups_different_mem_pools) {
+    PipelineExecutorSetConfig config{10, 1, 1, 1, CpuUtil::CpuIds{}, false, false, nullptr};
+    auto _manager = std::make_unique<WorkGroupManager>(config);
+
+    {
+        auto wg1 = std::make_shared<WorkGroup>(create_twg(102, 1, "wg", "test_pool", 0.5));
+        auto wg2 = std::make_shared<WorkGroup>(create_twg(103, 1, "wg2", "test_pool1", 0.5));
+        auto wg3 = std::make_shared<WorkGroup>(create_twg(104, 1, "wg3", WorkGroup::DEFAULT_MEM_POOL, 0.5));
+
+        _manager->add_workgroup(wg1);
+        _manager->add_workgroup(wg2);
+        _manager->add_workgroup(wg3);
+
+        auto workgroups = _manager->list_workgroups();
+
+        ASSERT_EQ(3, workgroups.size());
+        EXPECT_NE(wg2->mem_tracker()->parent(), wg1->mem_tracker()->parent());
+        EXPECT_NE(wg2->mem_tracker()->parent(), wg3->mem_tracker()->parent());
+        EXPECT_NE(wg1->mem_tracker()->parent(), wg3->mem_tracker()->parent());
+
+        EXPECT_EQ(wg1->mem_tracker()->parent()->type(), MemTrackerType::RESOURCE_GROUP_SHARED_MEMORY_POOL);
+        EXPECT_EQ(wg2->mem_tracker()->parent()->type(), MemTrackerType::RESOURCE_GROUP_SHARED_MEMORY_POOL);
+        EXPECT_EQ(wg3->mem_tracker()->parent()->type(), MemTrackerType::QUERY_POOL);
+    }
+    _manager->destroy();
+}
+
+PARALLEL_TEST(WorkGroupManagerTest, add_workgroups_same_mem_pools) {
+    PipelineExecutorSetConfig config{10, 1, 1, 1, CpuUtil::CpuIds{}, false, false, nullptr};
+    auto _manager = std::make_unique<WorkGroupManager>(config);
+
+    {
+        auto wg1 = std::make_shared<WorkGroup>(create_twg(105, 1, "wg5", "test_pool", 0.5));
+        auto wg2 = std::make_shared<WorkGroup>(create_twg(106, 1, "wg6", "test_pool", 0.5));
+        auto wg3 = std::make_shared<WorkGroup>(create_twg(107, 1, "wg7", WorkGroup::DEFAULT_MEM_POOL, 0.5));
+
+        _manager->add_workgroup(wg1);
+        _manager->add_workgroup(wg2);
+        _manager->add_workgroup(wg3);
+
+        auto workgroups = _manager->list_workgroups();
+
+        ASSERT_EQ(3, workgroups.size());
+        EXPECT_EQ(wg2->mem_tracker()->parent(), wg1->mem_tracker()->parent());
+        EXPECT_EQ(wg2->mem_tracker()->parent()->type(), MemTrackerType::RESOURCE_GROUP_SHARED_MEMORY_POOL);
+        EXPECT_EQ(wg2->mem_limit_bytes(), wg2->mem_tracker()->parent()->limit());
+
+        EXPECT_NE(wg2->mem_tracker()->parent(), wg3->mem_tracker()->parent());
+        EXPECT_EQ(wg3->mem_tracker()->parent()->type(), MemTrackerType::QUERY_POOL);
+    }
+    _manager->destroy();
+}
+} // namespace starrocks::workgroup