diff --git a/__tests__/dispatcher/dom.js b/__tests__/dispatcher/dom.js
index 2fb9adb5..1f650245 100644
--- a/__tests__/dispatcher/dom.js
+++ b/__tests__/dispatcher/dom.js
@@ -2,7 +2,7 @@ import Dom from 'dispatcher/dom';
 import {Log} from 'chimee-helper';
 describe('dispatcher/dom', () => {
   test('dom needs wrapper and dispatcher if you pass in illegal desipatcher, it should throw error', () => {
-    expect(() => new Dom()).toThrow('Illegal wrapper');
+    expect(() => new Dom()).toThrow('Wrapper can only be string or HTMLElement, but not undefined');
     expect(() => new Dom('hello')).toThrow('Can not get dom node accroding wrapper. Please check your wrapper');
   });
   describe('wrapper can be string, indicate elment in document', () => {
@@ -221,7 +221,7 @@ describe('_getEventHanlder', () => {
     expect(dom.container.style.zIndex).toBe('10');
     expect(() => dom.setStyle('WHAT')).toThrow("to handle dom's attribute or style, your attr parameter must be string");
     expect(() => dom.setStyle(1, 'hahahah')).toThrow("to handle dom's attribute or style, your target parameter must be string");
-    expect(() => dom.setStyle('what', 'z-index')).toThrow('Your target what is not a legal HTMLElement');
+    expect(() => dom.setStyle('what', 'z-index')).toThrow('Your target "what" is not a legal HTMLElement');
     dom.destroy();
   });
 });
diff --git a/src/dispatcher/dom.js b/src/dispatcher/dom.js
index 0f7a8c81..d1895c5a 100644
--- a/src/dispatcher/dom.js
+++ b/src/dispatcher/dom.js
@@ -4,12 +4,12 @@ import {videoEvents, domEvents} from 'helper/const';
 import {autobind, before, waituntil} from 'toxic-decorators';
 function targetCheck (target: string, ...args) {
   if(target === 'video') target = 'videoElement';
-  if(!isElement(this[target])) throw new TypeError('Your target ' + target + ' is not a legal HTMLElement');
+  if(!isElement(this[target])) throw new TypeError(`Your target "${target}" is not a legal HTMLElement`);
   return [target, ...args];
 }
 function attrOperationCheck (target: string, attr: string, val: any): Array<any> {
-  if(!isString(attr)) throw new TypeError("to handle dom's attribute or style, your attr parameter must be string");
-  if(!isString(target)) throw new TypeError("to handle dom's attribute or style, your target parameter must be string");
+  if(!isString(attr)) throw new TypeError(`to handle dom's attribute or style, your attr parameter must be string, but not ${attr} in ${typeof attr}`);
+  if(!isString(target)) throw new TypeError(`to handle dom's attribute or style, your target parameter must be string, , but not ${target} in ${typeof target}`);
   return [target, attr, val];
 }
 /**
@@ -86,7 +86,7 @@ export default class Dom {
   fullScreenElement = undefined;
   constructor (wrapper: string | Element, dispatcher: Dispatcher) {
     this.__dispatcher = dispatcher;
-    if(!isElement(wrapper) && !isString(wrapper)) throw new TypeError('Illegal wrapper');
+    if(!isElement(wrapper) && !isString(wrapper)) throw new TypeError(`Wrapper can only be string or HTMLElement, but not ${typeof wrapper}`);
     const $wrapper = $(wrapper);
     if($wrapper.length === 0) {
       throw new TypeError('Can not get dom node accroding wrapper. Please check your wrapper');