diff --git a/.env.example b/.env.example
index 5a2418e..3e78975 100644
--- a/.env.example
+++ b/.env.example
@@ -1,20 +1,22 @@
 # Server Configuration
-PORT=3000
-ENVIRONMENT=development
+# 使用 APP_ 前缀，优先级高于 config.yaml
+APP_SERVER_PORT=3000
+APP_SERVER_ENVIRONMENT=development
 
 # Database Configuration
-# Possible values for DATABASE_DRIVER: sqlite, postgres
-DATABASE_DRIVER=sqlite
-DATABASE_PATH=./data/database.sqlite
+# 使用 APP_ 前缀
+# Possible values for APP_DATABASE_DRIVER: sqlite, postgres
+APP_DATABASE_DRIVER=sqlite
+APP_DATABASE_SQLITE_PATH=./data/database.sqlite
 
-# PostgreSQL Configuration (Only if DATABASE_DRIVER is postgres)
-POSTGRES_HOST=localhost
-POSTGRES_PORT=5432
-POSTGRES_USER=trace
-POSTGRES_PASSWORD=trace123
-POSTGRES_DB=trace
-POSTGRES_SSLMODE=disable
+# PostgreSQL Configuration (Only if APP_DATABASE_DRIVER is postgres)
+APP_DATABASE_POSTGRES_HOST=localhost
+APP_DATABASE_POSTGRES_PORT=5432
+APP_DATABASE_POSTGRES_USER=trace
+APP_DATABASE_POSTGRES_PASSWORD=trace123
+APP_DATABASE_POSTGRES_DBNAME=trace
+APP_DATABASE_POSTGRES_SSLMODE=disable
 
 # JWT Configuration
-JWT_SECRET=your-secret-key-here-change-in-production
-JWT_EXPIRE=7200
+APP_JWT_SECRET=your-secret-key-here-change-in-production
+APP_JWT_EXPIRE=7200
\ No newline at end of file