diff --git a/package.json b/package.json
index a954d3b..d945eb6 100644
--- a/package.json
+++ b/package.json
@@ -280,7 +280,12 @@
                     "type": "array",
                     "default": [
                     ]
-                }
+                },
+                "emmylua.autoInsertTripleDash": {
+                    "type": "boolean",
+                    "default": true,
+                    "description": "%config.autoInsertTripleDash.description%"
+                  }
             }
         },
         "configurationDefaults": {
diff --git a/package.nls.json b/package.nls.json
index 30b652b..3ef942f 100644
--- a/package.nls.json
+++ b/package.nls.json
@@ -13,5 +13,6 @@
     "debug.launch.workingDir": "working directory",
     "debug.launch.arguments": "arguments pass to executable file",
     "debug.launch.blockOnExit": "block process when exit",
-    "debug.launch.newWindow": "create new windows"
+    "debug.launch.newWindow": "create new windows",
+    "config.autoInsertTripleDash.description": "Automatically insert \"---\" when line breaking after a comment"
 }
diff --git a/package.nls.zh-cn.json b/package.nls.zh-cn.json
index 8c2773a..1e61da4 100644
--- a/package.nls.zh-cn.json
+++ b/package.nls.zh-cn.json
@@ -13,5 +13,6 @@
     "debug.launch.workingDir": "设置工作区",
     "debug.launch.arguments": "传递给可执行文件的参数",
     "debug.launch.blockOnExit": "进程结束时是否阻塞进程保持窗口开启",
-    "debug.launch.newWindow": "emmylua会创建一个新窗口展示这个进程"
+    "debug.launch.newWindow": "emmylua会创建一个新窗口展示这个进程",
+    "config.autoInsertTripleDash.description": "在注解后换行时自动插入 \"---\""
 }
diff --git a/src/languageConfiguration.ts b/src/languageConfiguration.ts
index af22aaf..272d52c 100644
--- a/src/languageConfiguration.ts
+++ b/src/languageConfiguration.ts
@@ -1,36 +1,54 @@
 import { LanguageConfiguration, IndentAction, IndentationRule } from "vscode";
-
+import { workspace } from "vscode";
 export class LuaLanguageConfiguration implements LanguageConfiguration {
-    public onEnterRules = [
-        {
-			action: { indentAction: IndentAction.None, appendText: "---" },
-			beforeText: /^---/,
-        },
-        {
-            // 匹配 function 语句的行
-            beforeText: /^\s*function\s+\w*\s*\(.*\)\s*$/,
-            afterText: /^\s*end\s*$/,
-            action: { indentAction: IndentAction.IndentOutdent, appendText: "\t" }
-        },
-        {
-            // 匹配局部函数定义的行
-            beforeText: /^\s*local\s+\w+\s*=\s*function\s*\(.*\)\s*$/,
-            afterText: /^\s*end\s*$/,
-            action: { indentAction: IndentAction.IndentOutdent, appendText: "\t" }
-        },
-        {
-            // 匹配 xxx = function 语句的行
-            beforeText: /^\s*.*\s*=\s*function\s*\(.*\)\s*$/,
-            afterText: /^\s*end\s*$/,
-            action: { indentAction: IndentAction.IndentOutdent, appendText: "\t" }
-        },
-        {
-            // 匹配 local function 语句的行
-            beforeText: /^\s*local\s+function\s+\w*\s*\(.*\)\s*$/,
-            afterText: /^\s*end\s*$/,
-            action: { indentAction: IndentAction.IndentOutdent, appendText: "\t" }
+    public onEnterRules: any[];
+
+    constructor() {
+        this.onEnterRules = [
+            {
+                // 匹配 function 语句的行
+                beforeText: /^\s*function\s+\w*\s*\(.*\)\s*$/,
+                afterText: /^\s*end\s*$/,
+                action: { indentAction: IndentAction.IndentOutdent, appendText: "\t" }
+            },
+            {
+                // 匹配局部函数定义的行
+                beforeText: /^\s*local\s+\w+\s*=\s*function\s*\(.*\)\s*$/,
+                afterText: /^\s*end\s*$/,
+                action: { indentAction: IndentAction.IndentOutdent, appendText: "\t" }
+            },
+            {
+                // 匹配 xxx = function 语句的行
+                beforeText: /^\s*.*\s*=\s*function\s*\(.*\)\s*$/,
+                afterText: /^\s*end\s*$/,
+                action: { indentAction: IndentAction.IndentOutdent, appendText: "\t" }
+            },
+            {
+                // 匹配 local function 语句的行
+                beforeText: /^\s*local\s+function\s+\w*\s*\(.*\)\s*$/,
+                afterText: /^\s*end\s*$/,
+                action: { indentAction: IndentAction.IndentOutdent, appendText: "\t" }
+            }
+        ];
+
+        // 读取配置决定是否添加三横线规则
+        const config = workspace.getConfiguration('emmylua');
+        const autoInsertTripleDash = config.get<boolean>('autoInsertTripleDash', true);
+        // 第二个参数是默认值（当配置不存在时使用）
+        if (autoInsertTripleDash) {
+            this.onEnterRules = [
+                {
+                    action: { indentAction: IndentAction.None, appendText: "---" },
+                    beforeText: /^---/,
+                },
+                ...this.onEnterRules
+            ];
+        } else {
+            this.onEnterRules = [
+                ...this.onEnterRules
+            ];
         }
-    ];
+    }
 
     public indentationRules: IndentationRule = {
         // 匹配需要在下一行增加缩进的模式，例如函数定义、局部函数定义和 do 语句