diff --git a/mylog/log.go b/mylog/log.go
index 16e4db1..fa5ac1b 100644
--- a/mylog/log.go
+++ b/mylog/log.go
@@ -32,6 +32,13 @@ var (
 		NeedLogFile:   false,
 		ConsoleWriter: os.Stdout,
 	}
+
+	DefaultLogFile = &LogFile{
+		LogFilePath: "logs",
+		MaxSize:     200,
+		MaxAge:      0,
+		MaxBackups:  0,
+	}
 	globalLog = NewLogger("debug", DefaultConfig)
 )
 
@@ -43,9 +50,16 @@ type (
 	Config struct {
 		Level         string
 		NeedLogFile   bool
-		LogFilePath   string
 		ConsoleWriter io.Writer
 		ZapOpt        []zap.Option
+		LogFile       *LogFile
+	}
+
+	LogFile struct {
+		LogFilePath string
+		MaxSize     int
+		MaxAge      int
+		MaxBackups  int
 	}
 )
 
@@ -106,15 +120,15 @@ func NewLogger(serverName string, config *Config) *ZapLog {
 }
 
 func getRollingFileWriter(serverName string, config *Config) *lumberjack.Logger {
-	if config.LogFilePath == "" {
-		config.LogFilePath = "logs"
+	if config.LogFile == nil {
+		config.LogFile = DefaultLogFile
 	}
 
 	return &lumberjack.Logger{
-		Filename:   filepath.Join(config.LogFilePath, serverName+".log"),
-		MaxSize:    0,
-		MaxAge:     0,
-		MaxBackups: 0,
+		Filename:   filepath.Join(config.LogFile.LogFilePath, serverName+".log"),
+		MaxSize:    config.LogFile.MaxSize,
+		MaxAge:     config.LogFile.MaxAge,
+		MaxBackups: config.LogFile.MaxBackups,
 		LocalTime:  true,
 		Compress:   false,
 	}
diff --git a/mylog/log_test.go b/mylog/log_test.go
index 35972d1..47c50f4 100644
--- a/mylog/log_test.go
+++ b/mylog/log_test.go
@@ -22,8 +22,7 @@ func TestLog(t *testing.T) {
 
 func TestLogFile(t *testing.T) {
 	config := DefaultConfig
-	config.NeedLogFile = false
-	config.LogFilePath = "logs"
+	config.NeedLogFile = true
 	Init("debug", config)
 
 	Debug("time: ", time.Now())