diff --git a/web/package.json b/web/package.json
index 2b27c1b12d..1e2807507b 100644
--- a/web/package.json
+++ b/web/package.json
@@ -9,7 +9,7 @@
     "lint": "next lint",
     "fix": "next lint --fix",
     "eslint-fix": "eslint --fix",
-    "prepare": "cp .env.example .env && cd ../ && node -e \"if (process.env.NODE_ENV !== 'production'){process.exit(1)} \" || husky install ./web/.husky",
+    "prepare": "node ./scripts/update-env.mjs && cd ../ && node -e \"if (process.env.NODE_ENV !== 'production'){process.exit(1)} \" || husky install ./web/.husky",
     "gen-icons": "node ./app/components/base/icons/script.js",
     "uglify-embed": "node ./bin/uglify-embed",
     "check-i18n": "node ./i18n/script.js"
diff --git a/web/scripts/update-env.mjs b/web/scripts/update-env.mjs
new file mode 100644
index 0000000000..11e4ff10e1
--- /dev/null
+++ b/web/scripts/update-env.mjs
@@ -0,0 +1,37 @@
+import * as fs from 'node:fs'
+
+function parseEnvFile(contents) {
+  return contents.split('\n').reduce((acc, line) => {
+    const [key, value] = line.split('=')
+    if (key)
+      acc.set(key.trim(), value === undefined ? '' : value.trim())
+
+    return acc
+  }, new Map())
+}
+
+function updateEnvironmentFile() {
+  const examplePath = '.env.example'
+  const envPath = '.env'
+
+  const exampleContents = fs.readFileSync(examplePath, 'utf-8')
+  const envContents = fs.existsSync(envPath) ? fs.readFileSync(envPath, 'utf-8') : ''
+
+  const exampleConfig = parseEnvFile(exampleContents)
+  const envConfig = parseEnvFile(envContents)
+
+  exampleConfig.forEach((value, key) => {
+    if (!envConfig.has(key))
+      envConfig.set(key, value)
+  })
+
+  // 生成新的 .env 内容
+  const newEnvContents = Array.from(envConfig.entries())
+    .map(([key, value]) => `${key}=${value}`)
+    .join('\n')
+
+  fs.writeFileSync(envPath, newEnvContents)
+  console.log('.env file has been updated')
+}
+
+updateEnvironmentFile()