diff --git a/src/UI/Components/commandLineInput/InputHint.tsx b/src/UI/Components/commandLineInput/InputHint.tsx
index 84533f72b..f8f221c0b 100644
--- a/src/UI/Components/commandLineInput/InputHint.tsx
+++ b/src/UI/Components/commandLineInput/InputHint.tsx
@@ -5,6 +5,7 @@ import { end } from 'xaop';
 import { app } from '../../../ApplicationServices/Application';
 import { KeyWord } from '../../../Common/InputState';
 import { KeyBoard } from '../../../Common/KeyEnum';
+import { Log } from '../../../Common/Log';
 import { FixIndex, isLetter, isNum } from '../../../Common/Utils';
 import { CommandState } from '../../../Editor/CommandState';
 import { CommandStore } from '../../Store/CommandStore';
@@ -33,7 +34,7 @@ interface InputHitState
 }
 
 /**
- * 
+ *
  */
 @observer
 export class InputHint extends React.Component<InputHintProps, InputHitState>
@@ -101,20 +102,33 @@ export class InputHint extends React.Component<InputHintProps, InputHitState>
         let searchReg: RegExp;
         // 拼接动态正则表达式
         let m_comTmp: string = '^' + inputCmd.split('').join('\\w*') + '\\w*$';
-        searchReg = new RegExp(m_comTmp, 'i');
+        try
+        {
+            searchReg = new RegExp(m_comTmp, 'i');
+        } catch (error)
+        {
+            Log("正则表达式构建错误!");
+            return;
+        }
 
         let intelliSenseCmdList: string[] = [];
         for (let cmdName of this.props.cmdList)
         {
-            if (inputCmd.length === 1)
+            try
             {
-                if (cmdName.indexOf(inputCmd) === 0)
+                if (inputCmd.length === 1)
+                {
+                    if (cmdName.indexOf(inputCmd) === 0)
+                        intelliSenseCmdList.push(cmdName);
+                }
+                else if (cmdName.indexOf(inputCmd) !== -1
+                    || searchReg.test(cmdName))
+                {
                     intelliSenseCmdList.push(cmdName);
-            }
-            else if (cmdName.indexOf(inputCmd) !== -1
-                || searchReg.test(cmdName))
+                }
+            } catch (error)
             {
-                intelliSenseCmdList.push(cmdName);
+                Log("正则表达式测试错误!");
             }
         }
         intelliSenseCmdList.sort((c1, c2) =>