diff --git a/src/components/knockGold/index.jsx b/src/components/knockGold/index.jsx
index e4ef4e61..7e121f79 100644
--- a/src/components/knockGold/index.jsx
+++ b/src/components/knockGold/index.jsx
@@ -1031,6 +1031,7 @@ export default class addKnockGold extends Component {
                 }}
                 width='520px'
                 text={this.state.model.instruction}
+                limitLength={500}
               />
             </FormItem>
           </Form>
diff --git a/src/components/knockGold/wangEditor.jsx b/src/components/knockGold/wangEditor.jsx
index 18fedcfa..0ff8cfb4 100644
--- a/src/components/knockGold/wangEditor.jsx
+++ b/src/components/knockGold/wangEditor.jsx
@@ -34,8 +34,8 @@ export default class wangeditor extends React.Component {
         //没有文字
         self.props.setEdittext('')
       }
-      if (text.length > 500) {
-        let str = text.slice(0, 500)
+      if (text.length > self.props.limitLength) {
+        let str = text.slice(0, self.props.limitLength)
         self.setState({ editorHtml: str })
         editor.txt.html(str)
         self.props.setEdittext(str)
@@ -55,7 +55,9 @@ export default class wangeditor extends React.Component {
     return (
       <div className='countBox_par'>
         <div id='wangeditorDom' style={{ width: this.props.width }}></div>
-        <p className='countBox'>{this.state.count + '/' + 500}</p>
+        <p className='countBox'>
+          {this.state.count + '/' + this.props.limitLength}
+        </p>
       </div>
     )
   }