diff --git a/application/admin/view/index/login.html b/application/admin/view/index/login.html
index 9c10db8d..80910bf4 100644
--- a/application/admin/view/index/login.html
+++ b/application/admin/view/index/login.html
@@ -113,7 +113,7 @@
                         {if $Think.config.fastadmin.login_captcha}
                         <div class="input-group">
                             <div class="input-group-addon"><span class="glyphicon glyphicon-option-horizontal" aria-hidden="true"></span></div>
-                            <input type="text" name="captcha" class="form-control" placeholder="{:__('Captcha')}" data-rule="{:__('Captcha')}:required;length(4)"/>
+                            <input type="text" name="captcha" class="form-control" placeholder="{:__('Captcha')}" data-rule="{:__('Captcha')}:required;length(4)" autocomplete="off"/>
                             <span class="input-group-addon" style="padding:0;border:none;cursor:pointer;">
                                         <img src="{:rtrim('__PUBLIC__', '/')}/index.php?s=/captcha" width="100" height="30" onclick="this.src = '{:rtrim('__PUBLIC__', '/')}/index.php?s=/captcha&r=' + Math.random();"/>
                                     </span>