diff --git a/3rd/EmmyLuaCodeStyle b/3rd/EmmyLuaCodeStyle
index 081b623d0..28bff899e 160000
--- a/3rd/EmmyLuaCodeStyle
+++ b/3rd/EmmyLuaCodeStyle
@@ -1 +1 @@
-Subproject commit 081b623d03627b281d5744ab53c420667573b955
+Subproject commit 28bff899e7590f594b15146ea5f3a791268d1427
diff --git a/locale/en-us/setting.lua b/locale/en-us/setting.lua
index a354ff0b4..48cde197c 100644
--- a/locale/en-us/setting.lua
+++ b/locale/en-us/setting.lua
@@ -269,6 +269,8 @@ Read [formatter docs](https://github.com/CppCXY/EmmyLuaCodeStyle/tree/master/doc
 ]]
 config.spell.dict                        =
 'Custom words for spell checking.'
+config.nameStyle.config                  =
+'Set name style config'
 config.telemetry.enable                  =
 [[
 Enable telemetry to send your editor information and error logs over the network. Read our privacy policy [here](https://github.com/LuaLS/lua-language-server/wiki/Home#privacy).
@@ -401,6 +403,8 @@ config.diagnostics['return-type-mismatch']  =
 'Enable diagnostics for return values whose type does not match the type declared in the corresponding return annotation.'
 config.diagnostics['spell-check']           =
 'Enable diagnostics for typos in strings.'
+config.diagnostics['name-style-check']      =
+'Enable diagnostics for name style.'
 config.diagnostics['unbalanced-assignments']=
 'Enable diagnostics on multiple assignments if not all variables obtain a value (e.g., `local x,y = 1`).'
 config.diagnostics['undefined-doc-class']   =
diff --git a/locale/pt-br/setting.lua b/locale/pt-br/setting.lua
index c38f0ff06..ea1bfddd6 100644
--- a/locale/pt-br/setting.lua
+++ b/locale/pt-br/setting.lua
@@ -269,6 +269,8 @@ Read [formatter docs](https://github.com/CppCXY/EmmyLuaCodeStyle/tree/master/doc
 ]]
 config.spell.dict                        = -- TODO: need translate!
 'Custom words for spell checking.'
+config.nameStyle.config                  = -- TODO: need translate!
+'Set name style config'
 config.telemetry.enable                  = -- TODO: need translate!
 [[
 Enable telemetry to send your editor information and error logs over the network. Read our privacy policy [here](https://github.com/LuaLS/lua-language-server/wiki/Home#privacy).
@@ -401,6 +403,8 @@ config.diagnostics['return-type-mismatch']  = -- TODO: need translate!
 'Enable diagnostics for return values whose type does not match the type declared in the corresponding return annotation.'
 config.diagnostics['spell-check']           = -- TODO: need translate!
 'Enable diagnostics for typos in strings.'
+config.diagnostics['name-style-check']      = -- TODO: need translate!
+'Enable diagnostics for name style.'
 config.diagnostics['unbalanced-assignments']= -- TODO: need translate!
 'Enable diagnostics on multiple assignments if not all variables obtain a value (e.g., `local x,y = 1`).'
 config.diagnostics['undefined-doc-class']   = -- TODO: need translate!
diff --git a/locale/zh-cn/setting.lua b/locale/zh-cn/setting.lua
index 9dbd961d3..1755d76fa 100644
--- a/locale/zh-cn/setting.lua
+++ b/locale/zh-cn/setting.lua
@@ -268,6 +268,8 @@ config.format.defaultConfig              =
 ]]
 config.spell.dict                        =
 '拼写检查的自定义单词。'
+config.nameStyle.config                  =
+'设定命名风格检查的配置'
 config.telemetry.enable                  =
 [[
 启用遥测，通过网络发送你的编辑器信息与错误日志。在[此处](https://github.com/LuaLS/lua-language-server/wiki/Home#privacy)阅读我们的隐私声明。
@@ -400,6 +402,8 @@ config.diagnostics['return-type-mismatch']  = -- TODO: need translate!
 'Enable diagnostics for return values whose type does not match the type declared in the corresponding return annotation.'
 config.diagnostics['spell-check']           = -- TODO: need translate!
 'Enable diagnostics for typos in strings.'
+config.diagnostics['name-style-check']      = -- TODO: need translate!
+'Enable diagnostics for name style.'
 config.diagnostics['unbalanced-assignments']= -- TODO: need translate!
 'Enable diagnostics on multiple assignments if not all variables obtain a value (e.g., `local x,y = 1`).'
 config.diagnostics['undefined-doc-class']   = -- TODO: need translate!
diff --git a/locale/zh-tw/setting.lua b/locale/zh-tw/setting.lua
index 7cf932973..6c2c04893 100644
--- a/locale/zh-tw/setting.lua
+++ b/locale/zh-tw/setting.lua
@@ -268,6 +268,8 @@ config.format.defaultConfig              =
 ]]
 config.spell.dict                        =
 '拼寫檢查的自訂單詞。'
+config.nameStyle.config                  = -- TODO: need translate!
+'Set name style config'
 config.telemetry.enable                  =
 [[
 啟用遙測，透過網路發送你的編輯器資訊與錯誤日誌。在[此處](https://github.com/LuaLS/lua-language-server/wiki/Home#privacy)閱讀我們的隱私聲明。
@@ -400,6 +402,8 @@ config.diagnostics['return-type-mismatch']  = -- TODO: need translate!
 'Enable diagnostics for return values whose type does not match the type declared in the corresponding return annotation.'
 config.diagnostics['spell-check']           = -- TODO: need translate!
 'Enable diagnostics for typos in strings.'
+config.diagnostics['name-style-check']      = -- TODO: need translate!
+'Enable diagnostics for name style.'
 config.diagnostics['unbalanced-assignments']= -- TODO: need translate!
 'Enable diagnostics on multiple assignments if not all variables obtain a value (e.g., `local x,y = 1`).'
 config.diagnostics['undefined-doc-class']   = -- TODO: need translate!
diff --git a/make/code_format.lua b/make/code_format.lua
index 4d0764db1..c36a6b4fb 100644
--- a/make/code_format.lua
+++ b/make/code_format.lua
@@ -19,6 +19,7 @@ lm:source_set 'code_format' {
         "Util/src/StringUtil.cpp",
         "Util/src/Utf8.cpp",
         "Util/src/SymSpell/*.cpp",
+        "Util/src/InfoTree/*.cpp",
         --CodeService
         "CodeService/src/**/*.cpp",
     },
diff --git a/script/config/template.lua b/script/config/template.lua
index 3d2a8d35d..436f5e1a4 100644
--- a/script/config/template.lua
+++ b/script/config/template.lua
@@ -385,6 +385,8 @@ local template = {
                                                 auto_complete_table_sep = "true"
                                             },
     ['Lua.spell.dict']                      = Type.Array(Type.String),
+    ['Lua.nameStyle.config']                = Type.Hash(Type.String, Type.Or(Type.String, Type.Array(Type.Hash(Type.String, Type.String))))
+                                            >> {},
     ['Lua.misc.parameters']                 = Type.Array(Type.String),
     ['Lua.misc.executablePath']             = Type.String,
     ['Lua.type.castNumberToInteger']        = Type.Boolean >> true,
diff --git a/script/core/diagnostics/name-style-check.lua b/script/core/diagnostics/name-style-check.lua
new file mode 100644
index 000000000..4bdb068f2
--- /dev/null
+++ b/script/core/diagnostics/name-style-check.lua
@@ -0,0 +1,35 @@
+local files     = require 'files'
+local converter = require 'proto.converter'
+local log       = require 'log'
+local nameStyle = require 'provider.name-style'
+
+
+---@async
+return function (uri, callback)
+    local state = files.getState(uri)
+    if not state then
+        return
+    end
+    local text = state.originText
+
+    local status, diagnosticInfos = nameStyle.nameStyleCheck(uri, text)
+
+    if not status then
+        if diagnosticInfos ~= nil then
+            log.error(diagnosticInfos)
+        end
+
+        return
+    end
+
+    if diagnosticInfos then
+        for _, diagnosticInfo in ipairs(diagnosticInfos) do
+            callback {
+                start   = converter.unpackPosition(state, diagnosticInfo.range.start),
+                finish  = converter.unpackPosition(state, diagnosticInfo.range["end"]),
+                message = diagnosticInfo.message,
+                data    = diagnosticInfo.data
+            }
+        end
+    end
+end
diff --git a/script/proto/diagnostic.lua b/script/proto/diagnostic.lua
index 34f3646f3..bd10b7f7c 100644
--- a/script/proto/diagnostic.lua
+++ b/script/proto/diagnostic.lua
@@ -125,6 +125,14 @@ m.register {
     status   = 'None',
 }
 
+m.register {
+    'name-style-check'
+} {
+    group    = 'codestyle',
+    severity = 'Warning',
+    status   = 'None',
+}
+
 m.register {
     'newline-call',
     'newfield-call',
diff --git a/script/provider/name-style.lua b/script/provider/name-style.lua
new file mode 100644
index 000000000..bdb20d80d
--- /dev/null
+++ b/script/provider/name-style.lua
@@ -0,0 +1,28 @@
+local suc, codeFormat = pcall(require, 'code_format')
+if not suc then
+    return
+end
+
+local config = require 'config'
+
+local m = {}
+
+m.loaded = false
+
+function m.nameStyleCheck(uri, text)
+    if not m.loaded then
+        local value = config.get(nil, "Lua.nameStyle.config")
+        codeFormat.update_name_style_config(value)
+        m.loaded = true
+    end
+
+    return codeFormat.name_style_analysis(uri, text)
+end
+
+config.watch(function (uri, key, value)
+    if key == "Lua.nameStyle.config" then
+        codeFormat.update_name_style_config(value)
+    end
+end)
+
+return m