diff --git a/commands/command.go b/commands/command.go
index 5074e642..4c27064e 100644
--- a/commands/command.go
+++ b/commands/command.go
@@ -90,7 +90,6 @@ func RegisterLogger() {
 func RegisterCommand() {
 
 	Install()
-	Update()
 	CheckUpdate()
 	migrate.RunMigration()
 }
diff --git a/commands/update.go b/commands/update.go
index 62d15735..7b20fb37 100644
--- a/commands/update.go
+++ b/commands/update.go
@@ -13,49 +13,6 @@ import (
 	"strings"
 )
 
-//系统升级.
-func Update() {
-	if len(os.Args) >= 2 && os.Args[1] == "update" {
-
-		adapter := beego.AppConfig.String("db_adapter")
-
-		if adapter == "mysql" {
-			mysqlUpdate()
-		}else if adapter == "sqlite3" {
-			sqliteUpdate()
-		}
-
-		o := orm.NewOrm()
-
-		b,err := ioutil.ReadFile("./data/data.sql")
-
-		if err != nil {
-			panic(err.Error())
-			os.Exit(1)
-		}
-		sqls := string(b)
-
-		if sqls != "" {
-			items := strings.Split(sqls,"\r\n")
-			for _,sql := range items {
-				if sql != "" {
-					_,err = o.Raw(sql).Exec()
-
-					if err != nil  && err != orm.ErrNoRows{
-						panic("SITE_NAME => " + err.Error())
-						os.Exit(1)
-					}
-				}
-
-			}
-		}
-
-		fmt.Println("update successed.")
-
-		os.Exit(0)
-	}
-}
-
 //检查最新版本.
 func CheckUpdate() {
 
@@ -89,41 +46,4 @@ func CheckUpdate() {
 		fmt.Println("MinDoc last version => ", result[0].Name)
 		os.Exit(0)
 	}
-}
-
-//MySQL 数据库更新表结构.
-func mysqlUpdate()  {
-	db_name := beego.AppConfig.String("db_database")
-
-	o := orm.NewOrm()
-
-	var total_count int
-
-	err := o.Raw("SELECT COUNT(*) AS total_count FROM information_schema.columns WHERE table_schema= ? AND table_name = 'md_members' AND column_name = 'auth_method'",db_name).QueryRow(&total_count)
-
-	if err != nil {
-		panic(fmt.Sprintf("error : 6001 => %s",err.Error()))
-		os.Exit(1)
-	}
-	_,err = o.Raw("ALTER TABLE md_members ADD auth_method VARCHAR(50) DEFAULT 'local' NULL").Exec()
-}
-
-//sqlite 数据库更新表结构.
-func sqliteUpdate()  {
-	o := orm.NewOrm()
-
-	var sqlite_master struct{
-		Name string
-	}
-
-
-	err := o.Raw("select * from sqlite_master where name='md_members' and sql like '%auth_method%' limit 1").QueryRow(&sqlite_master)
-	//查询是否已经存在 auth_method 列
-	if err == orm.ErrNoRows{
-		_,err = o.Raw("ALTER TABLE md_members ADD auth_method VARCHAR(50) DEFAULT 'local' NULL;").Exec()
-		if err != nil {
-			panic(fmt.Sprintf("error : 6001 => %s",err.Error()))
-			os.Exit(1)
-		}
-	}
 }
\ No newline at end of file