diff --git a/package.json b/package.json
index 5cf1c1f0a8a1e3bf78d1140b7c969d7398f1e7fa..bff3ffa51baac1aba836c02d2521e008bf962894 100644
--- a/package.json
+++ b/package.json
@@ -75,6 +75,7 @@
     "jsdom-global": "^3.0.2",
     "jsonfile": "^6.0.1",
     "mustache": "^4.1.0",
+    "os-locale-s": "^1.0.8",
     "recast": "^0.20.4",
     "rollup": "^2.6.1",
     "rollup-plugin-babel": "^4.4.0",
diff --git a/packages/uni-cli-i18n/__tests__/env.spec.js b/packages/uni-cli-i18n/__tests__/env.spec.js
index 573e4eda8eeea40da21484f51c95446e50659649..876a216479e1949c2db0f70fc1136a4bf0d89a0f 100644
--- a/packages/uni-cli-i18n/__tests__/env.spec.js
+++ b/packages/uni-cli-i18n/__tests__/env.spec.js
@@ -1,4 +1,9 @@
 describe('env', () => {
+  it('CLI', () => {
+    process.env.LANG = 'fr'
+    const i18n = require('../lib/index')
+    expect(i18n.getLocale()).toBe('fr')
+  })
   it('HBuilderX', () => {
     process.env.UNI_HBUILDERX_LANGID = 'fr'
     const i18n = require('../lib/index')
diff --git a/packages/uni-cli-i18n/lib/index.js b/packages/uni-cli-i18n/lib/index.js
index c96220a04d0a0856a718839d436de48992a1343b..ddb702b24ad0b12de6f5789ce0aaff4954fabcb7 100644
--- a/packages/uni-cli-i18n/lib/index.js
+++ b/packages/uni-cli-i18n/lib/index.js
@@ -1,7 +1,8 @@
 const { I18n } = require('i18n')
+const { osLocale } = require('os-locale-s/cjs')
 const { format } = require('./lang')
 
-const defaultLocale = format(process.env.UNI_HBUILDERX_LANGID || process.env.LANG || 'en')
+const defaultLocale = format(process.env.UNI_HBUILDERX_LANGID || osLocale.sync({ spawn: false, cache: false }) || 'en')
 
 const i18n = new I18n()
 
diff --git a/packages/uni-cli-i18n/package.json b/packages/uni-cli-i18n/package.json
index 3864bf5fdf86aa8653b5e08edf367f234ad17d5b..62cd04c0be0a22f7b27317ce07fb9deba052be35 100644
--- a/packages/uni-cli-i18n/package.json
+++ b/packages/uni-cli-i18n/package.json
@@ -14,6 +14,7 @@
   "author": "fxy060608",
   "license": "Apache-2.0",
   "dependencies": {
-    "i18n": "^0.13.3"
+    "i18n": "^0.13.3",
+    "os-locale-s": "^1.0.8"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index 765c484f8b960d43076d9c407456605f4dd16f19..50c7c1b0e8c41f66276fe61547705c5513e975ec 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4805,6 +4805,11 @@ invert-kv@^2.0.0:
   version "2.0.0"
   resolved "https://registry.npmjs.org/invert-kv/-/invert-kv-2.0.0.tgz#7393f5afa59ec9ff5f67a27620d11c226e3eec02"
 
+invert-kv@^3.0.0:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/invert-kv/-/invert-kv-3.0.1.tgz#a93c7a3d4386a1dc8325b97da9bb1620c0282523"
+  integrity sha512-CYdFeFexxhv/Bcny+Q0BfOV+ltRlJcd4BBZBYFX/O0u4npJrgZtIcjokegtiSMAvlMTJ+Koq0GBCc//3bueQxw==
+
 ip-regex@^2.1.0:
   version "2.1.0"
   resolved "https://registry.npmjs.org/ip-regex/-/ip-regex-2.1.0.tgz#fa78bf5d2e6913c911ce9f819ee5146bb6d844e9"
@@ -5754,6 +5759,13 @@ lcid@^2.0.0:
   dependencies:
     invert-kv "^2.0.0"
 
+lcid@^3.0.0:
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/lcid/-/lcid-3.1.1.tgz#9030ec479a058fc36b5e8243ebaac8b6ac582fd0"
+  integrity sha512-M6T051+5QCGLBQb8id3hdvIW8+zeFV2FyBGFS9IEK5H9Wt4MueD4bW1eWikpHgZp+5xR3l5c8pZUkQsIA0BFZg==
+  dependencies:
+    invert-kv "^3.0.0"
+
 leven@^3.1.0:
   version "3.1.0"
   resolved "https://registry.npmjs.org/leven/-/leven-3.1.0.tgz#77891de834064cccba82ae7842bb6b14a13ed7f2"
@@ -6662,6 +6674,13 @@ os-homedir@^1.0.0, os-homedir@^1.0.1:
   version "1.0.2"
   resolved "https://registry.npmjs.org/os-homedir/-/os-homedir-1.0.2.tgz#ffbc4988336e0e833de0c168c7ef152121aa7fb3"
 
+os-locale-s@^1.0.8:
+  version "1.0.8"
+  resolved "https://registry.yarnpkg.com/os-locale-s/-/os-locale-s-1.0.8.tgz#c44df5e6ff9e6e7c6ac9e2a9fe71c2f43daeb8ed"
+  integrity sha512-VCVIYgA2Lv/DHedGtaGzUOG9ZV/5g5APvq5aN/dfnz1wxlvMp2ophiycKSDrlA8yEoF9eCx0bAEGDcAeZFMLUA==
+  dependencies:
+    lcid "^3.0.0"
+
 os-locale@^3.0.0:
   version "3.1.0"
   resolved "https://registry.npmjs.org/os-locale/-/os-locale-3.1.0.tgz#a802a6ee17f24c10483ab9935719cef4ed16bf1a"