diff --git a/backend/go-service/cmd/server/main.go b/backend/go-service/cmd/server/main.go
index 4d938ba..ec990ed 100644
--- a/backend/go-service/cmd/server/main.go
+++ b/backend/go-service/cmd/server/main.go
@@ -28,7 +28,7 @@ func main() {
 	}
 
 	// 2. 初始化日志系统
-	if err := logs.Init(cfg.Log.Level, cfg.Log.Format, cfg.Log.OutputPath); err != nil {
+	if err := logs.Init(&cfg.Log); err != nil {
 		fmt.Printf("初始化日志失败: %v\n", err)
 		os.Exit(1)
 	}
diff --git a/backend/go-service/config/config.dev.yaml b/backend/go-service/config/config.dev.yaml
index ff9db77..4b71be0 100644
--- a/backend/go-service/config/config.dev.yaml
+++ b/backend/go-service/config/config.dev.yaml
@@ -1,5 +1,5 @@
 server:
-  port: 8080
+  port: 8085
   mode: debug
 
 database:
@@ -28,3 +28,10 @@ log:
   level: debug
   format: text
   output_path: stdout
+  file:
+    enable: true
+    dir: logs
+    max_size: 50
+    max_backups: 10
+    max_age: 30
+    compress: false
diff --git a/backend/go-service/config/config.go b/backend/go-service/config/config.go
index e6aaeb4..4a25ae3 100644
--- a/backend/go-service/config/config.go
+++ b/backend/go-service/config/config.go
@@ -59,17 +59,28 @@ func (r *RedisConfig) Addr() string {
 
 // JWTConfig JWT 认证配置
 type JWTConfig struct {
-	Secret           string `mapstructure:"secret"`            // 签名密钥
-	AccessExpireMin  int    `mapstructure:"access_expire_min"` // Access Token 有效期（分钟）
+	Secret           string `mapstructure:"secret"`             // 签名密钥
+	AccessExpireMin  int    `mapstructure:"access_expire_min"`  // Access Token 有效期（分钟）
 	RefreshExpireDay int    `mapstructure:"refresh_expire_day"` // Refresh Token 有效期（天）
 	Issuer           string `mapstructure:"issuer"`             // 签发者
 }
 
 // LogConfig 日志配置
 type LogConfig struct {
-	Level      string `mapstructure:"level"`       // debug/info/warn/error
-	Format     string `mapstructure:"format"`      // text(开发)/json(生产)
-	OutputPath string `mapstructure:"output_path"` // stdout 或文件路径
+	Level      string        `mapstructure:"level"`       // debug/info/warn/error
+	Format     string        `mapstructure:"format"`      // text(开发)/json(生产)
+	OutputPath string        `mapstructure:"output_path"` // stdout 或文件路径
+	File       LogFileConfig `mapstructure:"file"`        // 日志文件轮转配置
+}
+
+// LogFileConfig 日志文件轮转配置（基于 lumberjack）
+type LogFileConfig struct {
+	Enable     bool   `mapstructure:"enable"`      // 是否启用文件日志
+	Dir        string `mapstructure:"dir"`          // 日志文件目录
+	MaxSize    int    `mapstructure:"max_size"`     // 单个文件最大大小（MB），超过后自动切割
+	MaxBackups int    `mapstructure:"max_backups"`  // 保留的旧日志文件最大数量
+	MaxAge     int    `mapstructure:"max_age"`      // 旧日志文件保留天数
+	Compress   bool   `mapstructure:"compress"`     // 是否压缩归档的旧日志文件
 }
 
 // Load 加载配置文件并返回 Config 实例
diff --git a/backend/go-service/go.mod b/backend/go-service/go.mod
index 703117f..848a855 100644
--- a/backend/go-service/go.mod
+++ b/backend/go-service/go.mod
@@ -9,6 +9,7 @@ require (
 	github.com/redis/go-redis/v9 v9.18.0
 	github.com/spf13/viper v1.21.0
 	go.uber.org/zap v1.27.1
+	gopkg.in/natefinch/lumberjack.v2 v2.2.1
 	gorm.io/driver/postgres v1.6.0
 	gorm.io/gorm v1.31.1
 )
diff --git a/backend/go-service/go.sum b/backend/go-service/go.sum
index ba1270a..c3c0f66 100644
--- a/backend/go-service/go.sum
+++ b/backend/go-service/go.sum
@@ -150,6 +150,8 @@ google.golang.org/protobuf v1.36.9/go.mod h1:fuxRtAxBytpl4zzqUh6/eyUujkJdNiuEkXn
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
+gopkg.in/natefinch/lumberjack.v2 v2.2.1 h1:bBRl1b0OH9s/DuPhuXpNl+VtCaJXFZ5/uEFST95x9zc=
+gopkg.in/natefinch/lumberjack.v2 v2.2.1/go.mod h1:YD8tP3GAjkrDg1eZH7EGmyESg/lsYskCTPBJVb9jqSc=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=