diff --git a/packages/uni-app-plus/dist/index.js b/packages/uni-app-plus/dist/index.js
index 9410878f9fae7683bec37189dac43e680fb60e37..51e4127fec0dd3a592b60b2791df8b479c7011dd 100644
--- a/packages/uni-app-plus/dist/index.js
+++ b/packages/uni-app-plus/dist/index.js
@@ -1434,15 +1434,10 @@ function getEventChannel (id) {
 
 function createApp (vm) {
   Vue.prototype.getOpenerEventChannel = function () {
-    switch ("app-plus") {
-      case 'mp-weixin':
-        return this.$scope.getOpenerEventChannel()
-      default :
-        if (!this.__eventChannel__) {
-          this.__eventChannel__ = new EventChannel();
-        }
-        return this.__eventChannel__
+    if (!this.__eventChannel__) {
+      this.__eventChannel__ = new EventChannel();
     }
+    return this.__eventChannel__
   };
   const callHook = Vue.prototype.__call_hook;
   Vue.prototype.__call_hook = function (hook, args) {
diff --git a/packages/uni-mp-alipay/dist/index.js b/packages/uni-mp-alipay/dist/index.js
index d4dd282bd3352ae2bf57eee877f156502bd95241..1eee42a53fd4fe54cb884b2f9fb7190a7e9befab 100644
--- a/packages/uni-mp-alipay/dist/index.js
+++ b/packages/uni-mp-alipay/dist/index.js
@@ -2281,15 +2281,10 @@ function parseApp (vm) {
 
 function createApp (vm) {
   Vue.prototype.getOpenerEventChannel = function () {
-    switch ("mp-alipay") {
-      case 'mp-weixin':
-        return this.$scope.getOpenerEventChannel()
-      default :
-        if (!this.__eventChannel__) {
-          this.__eventChannel__ = new EventChannel();
-        }
-        return this.__eventChannel__
+    if (!this.__eventChannel__) {
+      this.__eventChannel__ = new EventChannel();
     }
+    return this.__eventChannel__
   };
   const callHook = Vue.prototype.__call_hook;
   Vue.prototype.__call_hook = function (hook, args) {
diff --git a/packages/uni-mp-baidu/dist/index.js b/packages/uni-mp-baidu/dist/index.js
index 86ec293a44264d4d73f5db9133fe9eeeaa966da1..aa1ad7e7c767289f3adee64a46e0f334ffe20db6 100644
--- a/packages/uni-mp-baidu/dist/index.js
+++ b/packages/uni-mp-baidu/dist/index.js
@@ -1728,15 +1728,10 @@ function parseApp (vm) {
 
 function createApp (vm) {
   Vue.prototype.getOpenerEventChannel = function () {
-    switch ("mp-baidu") {
-      case 'mp-weixin':
-        return this.$scope.getOpenerEventChannel()
-      default :
-        if (!this.__eventChannel__) {
-          this.__eventChannel__ = new EventChannel();
-        }
-        return this.__eventChannel__
+    if (!this.__eventChannel__) {
+      this.__eventChannel__ = new EventChannel();
     }
+    return this.__eventChannel__
   };
   const callHook = Vue.prototype.__call_hook;
   Vue.prototype.__call_hook = function (hook, args) {
diff --git a/packages/uni-mp-kuaishou/dist/index.js b/packages/uni-mp-kuaishou/dist/index.js
index 5d59ac5d2b94e3b7e041ce2cd9ee3a604e47a02a..08ecf75716031db22e21870360a361181dd91fff 100644
--- a/packages/uni-mp-kuaishou/dist/index.js
+++ b/packages/uni-mp-kuaishou/dist/index.js
@@ -1474,15 +1474,10 @@ function parseApp$1 (vm) {
 
 function createApp (vm) {
   Vue.prototype.getOpenerEventChannel = function () {
-    switch ("mp-kuaishou") {
-      case 'mp-weixin':
-        return this.$scope.getOpenerEventChannel()
-      default :
-        if (!this.__eventChannel__) {
-          this.__eventChannel__ = new EventChannel();
-        }
-        return this.__eventChannel__
+    if (!this.__eventChannel__) {
+      this.__eventChannel__ = new EventChannel();
     }
+    return this.__eventChannel__
   };
   const callHook = Vue.prototype.__call_hook;
   Vue.prototype.__call_hook = function (hook, args) {
diff --git a/packages/uni-mp-qq/dist/index.js b/packages/uni-mp-qq/dist/index.js
index 09bb1c2105c6f52ce7ce7690519cc2fe037165ff..fc948a64f437091f4b5cdd09fbe13300e7d2b211 100644
--- a/packages/uni-mp-qq/dist/index.js
+++ b/packages/uni-mp-qq/dist/index.js
@@ -1640,15 +1640,10 @@ function parseApp$1 (vm) {
 
 function createApp (vm) {
   Vue.prototype.getOpenerEventChannel = function () {
-    switch ("mp-qq") {
-      case 'mp-weixin':
-        return this.$scope.getOpenerEventChannel()
-      default :
-        if (!this.__eventChannel__) {
-          this.__eventChannel__ = new EventChannel();
-        }
-        return this.__eventChannel__
+    if (!this.__eventChannel__) {
+      this.__eventChannel__ = new EventChannel();
     }
+    return this.__eventChannel__
   };
   const callHook = Vue.prototype.__call_hook;
   Vue.prototype.__call_hook = function (hook, args) {
diff --git a/packages/uni-mp-toutiao/dist/index.js b/packages/uni-mp-toutiao/dist/index.js
index 4ca29f08b39f7e75b7d2fa08a18e84f7f1d0b651..f17e4e9d5fe8b932dc38c9fa5ec5b1308cfd6b46 100644
--- a/packages/uni-mp-toutiao/dist/index.js
+++ b/packages/uni-mp-toutiao/dist/index.js
@@ -1807,15 +1807,10 @@ function parseApp (vm) {
 
 function createApp (vm) {
   Vue.prototype.getOpenerEventChannel = function () {
-    switch ("mp-toutiao") {
-      case 'mp-weixin':
-        return this.$scope.getOpenerEventChannel()
-      default :
-        if (!this.__eventChannel__) {
-          this.__eventChannel__ = new EventChannel();
-        }
-        return this.__eventChannel__
+    if (!this.__eventChannel__) {
+      this.__eventChannel__ = new EventChannel();
     }
+    return this.__eventChannel__
   };
   const callHook = Vue.prototype.__call_hook;
   Vue.prototype.__call_hook = function (hook, args) {
diff --git a/packages/uni-mp-weixin/dist/index.js b/packages/uni-mp-weixin/dist/index.js
index 706caac10e3239834c23f09fbce9d6ff4b589104..e17f348b5e8e1b634619b5cb97acc02d9b9bf74f 100644
--- a/packages/uni-mp-weixin/dist/index.js
+++ b/packages/uni-mp-weixin/dist/index.js
@@ -687,74 +687,6 @@ Component = function (options = {}) {
   return MPComponent(options)
 };
 
-class EventChannel {
-  constructor (id, events) {
-    this.id = id;
-    this.listener = {};
-    this.emitCache = {};
-    if (events) {
-      Object.keys(events).forEach(name => {
-        this.on(name, events[name]);
-      });
-    }
-  }
-
-  emit (eventName, ...args) {
-    const fns = this.listener[eventName];
-    if (!fns) {
-      return (this.emitCache[eventName] || (this.emitCache[eventName] = [])).push(args)
-    }
-    fns.forEach(opt => {
-      opt.fn.apply(opt.fn, args);
-    });
-    this.listener[eventName] = fns.filter(opt => opt.type !== 'once');
-  }
-
-  on (eventName, fn) {
-    this._addListener(eventName, 'on', fn);
-    this._clearCache(eventName);
-  }
-
-  once (eventName, fn) {
-    this._addListener(eventName, 'once', fn);
-    this._clearCache(eventName);
-  }
-
-  off (eventName, fn) {
-    const fns = this.listener[eventName];
-    if (!fns) {
-      return
-    }
-    if (fn) {
-      for (let i = 0; i < fns.length;) {
-        if (fns[i].fn === fn) {
-          fns.splice(i, 1);
-          i--;
-        }
-        i++;
-      }
-    } else {
-      delete this.listener[eventName];
-    }
-  }
-
-  _clearCache (eventName) {
-    const cacheArgs = this.emitCache[eventName];
-    if (cacheArgs) {
-      for (; cacheArgs.length > 0;) {
-        this.emit.apply(this, [eventName].concat(cacheArgs.shift()));
-      }
-    }
-  }
-
-  _addListener (eventName, type, fn) {
-    (this.listener[eventName] || (this.listener[eventName] = [])).push({
-      fn,
-      type
-    });
-  }
-}
-
 const PAGE_EVENT_HOOKS = [
   'onPullDownRefresh',
   'onReachBottom',
@@ -1485,14 +1417,9 @@ function getEventChannel (id) {
 
 function createApp (vm) {
   Vue.prototype.getOpenerEventChannel = function () {
-    switch ("mp-weixin") {
-      case 'mp-weixin':
-        return this.$scope.getOpenerEventChannel()
-      default :
-        if (!this.__eventChannel__) {
-          this.__eventChannel__ = new EventChannel();
-        }
-        return this.__eventChannel__
+    // 微信小程序使用自身getOpenerEventChannel
+    {
+      return this.$scope.getOpenerEventChannel()
     }
   };
   const callHook = Vue.prototype.__call_hook;
diff --git a/packages/uni-quickapp-webview/dist/index.js b/packages/uni-quickapp-webview/dist/index.js
index 8678f1b0649ed658683793b9a9cd8b86076d11fe..8bfa6f0bf259105cd004d2cf3bb4c309e6bdf13a 100644
--- a/packages/uni-quickapp-webview/dist/index.js
+++ b/packages/uni-quickapp-webview/dist/index.js
@@ -1552,15 +1552,10 @@ function parseApp (vm) {
 
 function createApp (vm) {
   Vue.prototype.getOpenerEventChannel = function () {
-    switch ("quickapp-webview") {
-      case 'mp-weixin':
-        return this.$scope.getOpenerEventChannel()
-      default :
-        if (!this.__eventChannel__) {
-          this.__eventChannel__ = new EventChannel();
-        }
-        return this.__eventChannel__
+    if (!this.__eventChannel__) {
+      this.__eventChannel__ = new EventChannel();
     }
+    return this.__eventChannel__
   };
   const callHook = Vue.prototype.__call_hook;
   Vue.prototype.__call_hook = function (hook, args) {