diff --git a/src/modules/form.js b/src/modules/form.js
index c866c06f..34cbd936 100644
--- a/src/modules/form.js
+++ b/src/modules/form.js
@@ -457,7 +457,7 @@ layui.define(['lay', 'layer', 'util'], function(exports){
                 hideDown();
                 initValue && input.val(initValue);
               },
-              {ignore: title}
+              {ignore: title, detectIframe: true}
             );
           };
           
diff --git a/src/modules/lay.js b/src/modules/lay.js
index f0c369d9..ed3e1977 100644
--- a/src/modules/lay.js
+++ b/src/modules/lay.js
@@ -629,6 +629,7 @@
    * @param {HTMLElement | Window} [options.scope=document] - 监听范围
    * @param {Array<HTMLElement | string>} [options.ignore] - 忽略监听的元素或选择器字符串
    * @param {boolean} [options.capture=true] - 对内部事件侦听器使用捕获阶段
+   * @param {boolean} [options.detectIframe] - 是否检测 iframe
    * @returns {() => void} - 返回一个停止事件监听的函数
    */
   lay.onClickOutside = function(target, handler, options){
@@ -637,6 +638,7 @@
     var scopeTarget = options.scope || document;
     var ignore = options.ignore || [];
     var useCapture = 'capture' in options ? options.capture : true;
+    var detectIframe = options.detectIframe;
 
     var listener = function(event){
       var el = target;
@@ -693,21 +695,36 @@
       return [eventTarget].concat(getParents(eventTarget));
     }
 
-    if(document.addEventListener){
-      scopeTarget.addEventListener(eventType, listener, useCapture);
-    }else{
-      scopeTarget.attachEvent('on' + eventType, listener);
-    }
+    function bindEventListener(elem, eventName, handler, opts){
+      elem.addEventListener
+        ? elem.addEventListener(eventName, handler, opts)
+        : elem.attachEvent('on' + eventName, handler);
 
-    var stop = function(){
-      if(document.removeEventListener){
-        scopeTarget.removeEventListener(eventType, listener, useCapture);
-      }else{
-        scopeTarget.detachEvent('on' + eventType, listener);
+      return function(){
+        elem.removeEventListener
+          ? elem.removeEventListener(eventName, handler, opts)
+          : elem.detachEvent('on' + eventName, handler);
       }
     }
 
-    return stop;
+    var cleanup = [
+      bindEventListener(scopeTarget, eventType, listener, lay.passiveSupported ? { passive: true, capture: useCapture } : useCapture),
+      detectIframe && bindEventListener(window, 'blur', function(event){
+        setTimeout(function(){
+          if(document.activeElement && document.activeElement.tagName === 'IFRAME' 
+            && target.contains && !target.contains(document.activeElement)
+          ){
+            handler(event);
+          }
+        }, 0);
+      })
+    ]
+
+    return function(){
+      for(var i=0; i < cleanup.length; i++){
+        cleanup[i] && cleanup[i]();
+      }
+    }
   };