diff --git a/packages/uni-cli-shared/__tests__/i18n.spec.ts b/packages/uni-cli-shared/__tests__/i18n.spec.ts
index 769534c3933405cdd1e61a33bed241720cb2746b..0e915c0f8fcce086acf2f5b2205b692fde3ad1d1 100644
--- a/packages/uni-cli-shared/__tests__/i18n.spec.ts
+++ b/packages/uni-cli-shared/__tests__/i18n.spec.ts
@@ -1,18 +1,23 @@
-import { normalizeI18nLocale } from '../src/i18n'
-describe('normalizeI18nLocale', () => {
+import { resolveI18nLocale } from '../src/i18n'
+describe('resolveI18nLocale', () => {
   test('specifying locale', () => {
-    expect(normalizeI18nLocale({ 'zh-Hans': {}, fr: {} }, 'fr')).toBe('fr')
+    expect(resolveI18nLocale('app', ['zh-Hans', 'fr'], 'fr')).toBe('fr')
   })
-  test('fallback en', () => {
-    expect(normalizeI18nLocale({ 'zh-Hans': {}, en: {} }, 'fr')).toBe('en')
+  test('fallback en(app)', () => {
+    expect(resolveI18nLocale('app', ['zh-Hans', 'en'], 'fr')).toBe('en')
+  })
+  test('fallback en(mp)', () => {
+    expect(resolveI18nLocale('mp-weixin', ['zh-Hans', 'en'], 'fr')).toBe(
+      'zh-Hans'
+    )
   })
   test('fallback zh-Hans', () => {
-    expect(normalizeI18nLocale({ 'zh-Hans': {}, es: {} })).toBe('zh-Hans')
+    expect(resolveI18nLocale('app', ['zh-Hans', 'es'])).toBe('zh-Hans')
   })
   test('fallback zh-Hant', () => {
-    expect(normalizeI18nLocale({ 'zh-Hant': {}, es: {} })).toBe('zh-Hant')
+    expect(resolveI18nLocale('app', ['zh-Hant', 'es'])).toBe('zh-Hant')
   })
   test('fallback first locale', () => {
-    expect(normalizeI18nLocale({ fr: {}, es: {} })).toBe('fr')
+    expect(resolveI18nLocale('app', ['fr', 'es'])).toBe('fr')
   })
 })
diff --git a/packages/uni-cli-shared/src/i18n.ts b/packages/uni-cli-shared/src/i18n.ts
index 9f93ead0a02fef45e42e2001d5dd2af9648c7bc3..eb15f290a3af0ba971d0fe631d9de02f7a8f2109 100644
--- a/packages/uni-cli-shared/src/i18n.ts
+++ b/packages/uni-cli-shared/src/i18n.ts
@@ -55,7 +55,7 @@ export function initLocales(dir: string, withMessages: boolean = true) {
   }, {} as Record<string, Record<string, string>>)
 }
 
-function resolveI18nLocale(
+export function resolveI18nLocale(
   platfrom: UniApp.PLATFORM,
   locales: string[],
   locale?: string