diff --git a/pkg/device/ascend/device.go b/pkg/device/ascend/device.go
index 34d807a338..31604d3299 100644
--- a/pkg/device/ascend/device.go
+++ b/pkg/device/ascend/device.go
@@ -460,14 +460,16 @@ func (npu *Devices) Fit(devices []*device.DeviceUsage, request device.ContainerD
 		totalMemPerCard = devices[0].Totalmem
 	}
 
+	if isHAMiCore && !nodeSupportHamiCore {
+		reason[common.ModeNotFit]++
+		klog.V(4).InfoS("Node filtered: pod requests hami-core but node does not support it", "pod", klog.KObj(pod))
+		return false, nil, common.GenReason(reason, len(devices))
+	}
+
 	if request.Memreq > 0 && request.Memreq < totalMemPerCard && request.Nums > 0 {
-		if !nodeSupportHamiCore && isHAMiCore {
-			reason[common.ModeNotFit]++
-			klog.V(4).InfoS("Node filtered: Node does not support hami-core mode", "node", nodeInfo.Node.Name, "pod", pod.Name)
-			return false, nil, common.GenReason(reason, len(devices))
-		} else if nodeSupportHamiCore && !isHAMiCore {
+		if nodeSupportHamiCore && !isHAMiCore {
 			reason[common.ModeNotFit]++
-			klog.V(4).InfoS("Node filtered: Reserved for hami-core but pod is legacy vNPU", "node", nodeInfo.Node.Name, "pod", pod.Name)
+			klog.V(4).InfoS("Node filtered: node reserved for hami-core but pod is legacy vNPU", "pod", klog.KObj(pod))
 			return false, nil, common.GenReason(reason, len(devices))
 		}
 	}
diff --git a/pkg/device/ascend/device_test.go b/pkg/device/ascend/device_test.go
index 6a80e89086..2562e7f2cd 100644
--- a/pkg/device/ascend/device_test.go
+++ b/pkg/device/ascend/device_test.go
@@ -1813,6 +1813,80 @@ func TestDevices_Fit(t *testing.T) {
 			wantReason:     "1/1 ModeNotFit",
 			nodeAnnotation: map[string]string{VNPUNodeSelectorAnnotation: "true"},
 		},
+		{
+			name: "fit fail: whole-card hami-core pod on legacy node (ModeNotFit)",
+			devices: []*device.DeviceUsage{{
+				ID: "dev-0", Index: 0, Used: 0, Count: 100,
+				Usedmem: 0, Totalmem: 32768, Totalcore: 100, Usedcores: 0,
+				Numa: 0, Health: true,
+			}},
+			request: device.ContainerDeviceRequest{
+				Nums: 1, Memreq: 32768, MemPercentagereq: 0, Coresreq: 0,
+			},
+			annos: map[string]string{
+				VNPUModeAnnotation: VNPUModeHamiCore,
+			},
+			wantFit:        false,
+			wantLen:        0,
+			wantDevIDs:     []string{},
+			wantReason:     "1/1 ModeNotFit",
+			nodeAnnotation: map[string]string{},
+		},
+		{
+			name: "fit fail: memory-less hami-core pod on legacy node (ModeNotFit)",
+			devices: []*device.DeviceUsage{{
+				ID: "dev-0", Index: 0, Used: 0, Count: 100,
+				Usedmem: 0, Totalmem: 32768, Totalcore: 100, Usedcores: 0,
+				Numa: 0, Health: true,
+			}},
+			request: device.ContainerDeviceRequest{
+				Nums: 1, Memreq: 0, MemPercentagereq: 101, Coresreq: 0,
+			},
+			annos: map[string]string{
+				VNPUModeAnnotation: VNPUModeHamiCore,
+			},
+			wantFit:        false,
+			wantLen:        0,
+			wantDevIDs:     []string{},
+			wantReason:     "1/1 ModeNotFit",
+			nodeAnnotation: map[string]string{},
+		},
+		{
+			name: "fit success: whole-card hami-core pod on hami-core node",
+			devices: []*device.DeviceUsage{{
+				ID: "dev-0", Index: 0, Used: 0, Count: 100,
+				Usedmem: 0, Totalmem: 32768, Totalcore: 100, Usedcores: 0,
+				Numa: 0, Health: true,
+			}},
+			request: device.ContainerDeviceRequest{
+				Nums: 1, Memreq: 32768, MemPercentagereq: 0, Coresreq: 0,
+			},
+			annos: map[string]string{
+				VNPUModeAnnotation: VNPUModeHamiCore,
+			},
+			wantFit:        true,
+			wantLen:        1,
+			wantDevIDs:     []string{"dev-0"},
+			wantReason:     "",
+			nodeAnnotation: map[string]string{VNPUNodeSelectorAnnotation: "true"},
+		},
+		{
+			name: "fit success: whole-card legacy pod on hami-core node",
+			devices: []*device.DeviceUsage{{
+				ID: "dev-0", Index: 0, Used: 0, Count: 100,
+				Usedmem: 0, Totalmem: 32768, Totalcore: 100, Usedcores: 0,
+				Numa: 0, Health: true,
+			}},
+			request: device.ContainerDeviceRequest{
+				Nums: 1, Memreq: 32768, MemPercentagereq: 0, Coresreq: 0,
+			},
+			annos:          map[string]string{},
+			wantFit:        true,
+			wantLen:        1,
+			wantDevIDs:     []string{"dev-0"},
+			wantReason:     "",
+			nodeAnnotation: map[string]string{VNPUNodeSelectorAnnotation: "true"},
+		},
 	}
 
 	for _, dev := range devs {