diff --git a/sheep/config/index.js b/sheep/config/index.js
index 7767dac5..13a95db0 100644
--- a/sheep/config/index.js
+++ b/sheep/config/index.js
@@ -1,19 +1,8 @@
 import packageInfo from '@/package.json';
+import { getWxEnvVersion } from '@/sheep/helper/env';
 
 const { version } = packageInfo;
 
-// 获取微信小程序运行环境
-function getWxEnvVersion() {
-  // #ifdef MP-WEIXIN
-  try {
-    const accountInfo = wx.getAccountInfoSync();
-    return accountInfo.miniProgram.envVersion; // develop: 开发版, trial: 体验版, release: 正式版
-  } catch (e) {
-    console.log('获取微信小程序环境失败', e);
-    return 'release';
-  }
-  // #endif
-}
 
 // 开发环境配置
 export let baseUrl;
diff --git a/sheep/helper/env.js b/sheep/helper/env.js
new file mode 100644
index 00000000..6e53918a
--- /dev/null
+++ b/sheep/helper/env.js
@@ -0,0 +1,21 @@
+/**
+ * 微信小程序运行环境：develop / trial / release
+ * 其它平台默认 release，整个 App 生命周期内不会变，缓存一次
+ */
+let cachedEnvVersion;
+
+export function getWxEnvVersion() {
+  if (cachedEnvVersion) return cachedEnvVersion;
+  // #ifdef MP-WEIXIN
+  try {
+    cachedEnvVersion = wx.getAccountInfoSync().miniProgram.envVersion;
+  } catch (e) {
+    console.log('获取微信小程序环境失败', e);
+    cachedEnvVersion = 'release';
+  }
+  // #endif
+  // #ifndef MP-WEIXIN
+  cachedEnvVersion = 'release';
+  // #endif
+  return cachedEnvVersion;
+}