diff --git a/src/main/webapp/WEB-INF/views/cfg/proxy/fileTrafficMirror/form.jsp b/src/main/webapp/WEB-INF/views/cfg/proxy/fileTrafficMirror/form.jsp
index becae0e3f..6a37ddf8e 100644
--- a/src/main/webapp/WEB-INF/views/cfg/proxy/fileTrafficMirror/form.jsp
+++ b/src/main/webapp/WEB-INF/views/cfg/proxy/fileTrafficMirror/form.jsp
@@ -190,7 +190,7 @@ word-break:break-all;
 												<font color="red">*</font><spring:message code="mirror_addr_list" />
 											</label>								       
 								            <div class="col-md-6">								            	
-								            	<textarea id="addrList" name="addrList" class="form-control addrList" style="height:expression((this.scrollHeight>150)?'150px':(this.scrollHeight+5)+'px');overflow:auto;">${_cfg.addrList}</textarea>
+								            	<textarea id="addrList" name="addrList" class="form-control addrList" maxlength="1024" style="height:expression((this.scrollHeight>150)?'150px':(this.scrollHeight+5)+'px');overflow:auto;">${_cfg.addrList}</textarea>
 								            </div>								            								            						                 								               
 								            <div for="addrList"></div>
 								        </div>