diff --git a/gorm/gorm.go b/gorm/gorm.go
index fbb0086..b1928ab 100644
--- a/gorm/gorm.go
+++ b/gorm/gorm.go
@@ -12,16 +12,23 @@ import (
 	"github.com/sunmi-OS/gocore/xlog"
 )
 
-type Client struct {
-	maps          sync.Map
-	defaultDbName string
-}
-
-var _Gorm *Client
+var (
+	Gorm        sync.Map
+	defaultName = "dbDefault"
+)
 
-func Gorm() *Client {
-	return _Gorm
-}
+var (
+	// ErrRecordNotFound record not found error, happens when haven't find any matched data when looking up with a struct
+	ErrRecordNotFound = gorm.ErrRecordNotFound
+	// ErrInvalidSQL invalid SQL error, happens when you passed invalid SQL
+	ErrInvalidSQL = gorm.ErrInvalidSQL
+	// ErrInvalidTransaction invalid transaction when you are trying to `Commit` or `Rollback`
+	ErrInvalidTransaction = gorm.ErrInvalidTransaction
+	// ErrCantStartTransaction can't start transaction when you are trying to start one with `Begin`
+	ErrCantStartTransaction = gorm.ErrCantStartTransaction
+	// ErrUnaddressable unaddressable value
+	ErrUnaddressable = gorm.ErrUnaddressable
+)
 
 // 初始化Gorm
 func NewDB(dbname string) {
@@ -29,11 +36,7 @@ func NewDB(dbname string) {
 		orm *gorm.DB
 		err error
 	)
-	if _Gorm == nil {
-		_Gorm = &Client{defaultDbName: defaultName}
-	}
 
-	// openORM
 	err = retry.Retry(func() error {
 		orm, err = openORM(dbname)
 		if err != nil {
@@ -46,17 +49,16 @@ func NewDB(dbname string) {
 		panic(err)
 	}
 
-	// store db client
-	_Gorm.maps.Store(dbname, orm)
+	Gorm.Store(dbname, orm)
 }
 
-// SetDefaultName 设置默认DB Name
-func (c *Client) SetDefaultName(dbName string) {
-	c.defaultDbName = dbName
+// 设置获取db的默认值
+func SetDefaultName(dbname string) {
+	defaultName = dbname
 }
 
-// NewOrUpdateDB 初始化或更新Gorm
-func (c *Client) NewOrUpdateDB(dbname string) error {
+// 初始化Gorm
+func UpdateDB(dbname string) error {
 	var (
 		orm *gorm.DB
 		err error
@@ -76,11 +78,11 @@ func (c *Client) NewOrUpdateDB(dbname string) error {
 	}
 
 	// second: load gorm client
-	v, _ := c.maps.Load(dbname)
+	v, _ := Gorm.Load(dbname)
 
 	// third: delete old gorm client and store the new gorm client
-	c.maps.Delete(dbname)
-	c.maps.Store(dbname, orm)
+	Gorm.Delete(dbname)
+	Gorm.Store(dbname, orm)
 
 	// fourth: if old client is not nil, delete and close connection
 	if v != nil {
@@ -89,30 +91,30 @@ func (c *Client) NewOrUpdateDB(dbname string) error {
 	return nil
 }
 
+// Deprecated
+// 通过名称获取Gorm实例
+func GetORMByName(dbname string) *gorm.DB {
+	v, ok := Gorm.Load(dbname)
+	if ok {
+		return v.(*gorm.DB)
+	}
+	return nil
+}
+
 // GetORM 获取默认的Gorm实例
 // 目前仅支持 不传 或者仅传一个 dbname
-func (c *Client) GetORM(dbname ...string) *gorm.DB {
-	name := c.defaultDbName
+func GetORM(dbname ...string) *gorm.DB {
+	name := defaultName
 	if len(dbname) == 1 {
 		name = dbname[0]
 	}
-
-	v, ok := c.maps.Load(name)
+	v, ok := Gorm.Load(name)
 	if ok {
 		return v.(*gorm.DB)
 	}
 	return nil
 }
 
-func (c *Client) Close() {
-	c.maps.Range(func(dbName, orm interface{}) bool {
-		xlog.Warnf("close db %s", dbName)
-		c.maps.Delete(dbName)
-		orm.(*gorm.DB).Close()
-		return true
-	})
-}
-
 func openORM(dbname string) (*gorm.DB, error) {
 	//默认配置
 	viper.C.SetDefault(dbname, map[string]interface{}{
diff --git a/orm/gorm.go b/orm/gorm.go
new file mode 100644
index 0000000..72b69db
--- /dev/null
+++ b/orm/gorm.go
@@ -0,0 +1,152 @@
+package orm
+
+import (
+	"sync"
+	"time"
+
+	"github.com/jinzhu/gorm"
+	_ "github.com/jinzhu/gorm/dialects/mysql"
+	"github.com/sunmi-OS/gocore/retry"
+	"github.com/sunmi-OS/gocore/viper"
+	"github.com/sunmi-OS/gocore/xlog"
+)
+
+type Client struct {
+	maps          sync.Map
+	defaultDbName string
+}
+
+var _Gorm *Client
+
+func Gorm() *Client {
+	return _Gorm
+}
+
+// 初始化Gorm
+func NewDB(dbname string) {
+	var (
+		orm *gorm.DB
+		err error
+	)
+	if _Gorm == nil {
+		_Gorm = &Client{defaultDbName: defaultName}
+	}
+
+	// openORM
+	err = retry.Retry(func() error {
+		orm, err = openORM(dbname)
+		if err != nil {
+			xlog.Errorf("NewDB(%s) error:%+v", dbname, err)
+			return err
+		}
+		return nil
+	}, 5, 3*time.Second)
+	if err != nil || orm == nil {
+		panic(err)
+	}
+
+	// store db client
+	_Gorm.maps.Store(dbname, orm)
+}
+
+// SetDefaultName 设置默认DB Name
+func (c *Client) SetDefaultName(dbName string) {
+	c.defaultDbName = dbName
+}
+
+// NewOrUpdateDB 初始化或更新Gorm
+func (c *Client) NewOrUpdateDB(dbname string) error {
+	var (
+		orm *gorm.DB
+		err error
+	)
+
+	// first: open new gorm client
+	err = retry.Retry(func() error {
+		orm, err = openORM(dbname)
+		if err != nil {
+			xlog.Errorf("UpdateDB(%s) error:%+v", dbname, err)
+			return err
+		}
+		return nil
+	}, 5, 3*time.Second)
+	if err != nil {
+		return err
+	}
+
+	// second: load gorm client
+	v, _ := c.maps.Load(dbname)
+
+	// third: delete old gorm client and store the new gorm client
+	c.maps.Delete(dbname)
+	c.maps.Store(dbname, orm)
+
+	// fourth: if old client is not nil, delete and close connection
+	if v != nil {
+		v.(*gorm.DB).Close()
+	}
+	return nil
+}
+
+// GetORM 获取默认的Gorm实例
+// 目前仅支持 不传 或者仅传一个 dbname
+func (c *Client) GetORM(dbname ...string) *gorm.DB {
+	name := c.defaultDbName
+	if len(dbname) == 1 {
+		name = dbname[0]
+	}
+
+	v, ok := c.maps.Load(name)
+	if ok {
+		return v.(*gorm.DB)
+	}
+	return nil
+}
+
+func (c *Client) Close() {
+	c.maps.Range(func(dbName, orm interface{}) bool {
+		xlog.Warnf("close db %s", dbName)
+		c.maps.Delete(dbName)
+		orm.(*gorm.DB).Close()
+		return true
+	})
+}
+
+func openORM(dbname string) (*gorm.DB, error) {
+	//默认配置
+	viper.C.SetDefault(dbname, map[string]interface{}{
+		"dbHost":          "127.0.0.1",
+		"dbName":          "phalgo",
+		"dbUser":          "root",
+		"dbPasswd":        "",
+		"dbPort":          3306,
+		"dbIdleconns_max": 20,
+		"dbOpenconns_max": 20,
+		"dbType":          "mysql",
+		"dbDebug":         false,
+	})
+	dbHost := viper.GetEnvConfig(dbname + ".dbHost")
+	dbName := viper.GetEnvConfig(dbname + ".dbName")
+	dbUser := viper.GetEnvConfig(dbname + ".dbUser")
+	dbPasswd := viper.GetEnvConfig(dbname + ".dbPasswd")
+	dbPort := viper.GetEnvConfig(dbname + ".dbPort")
+	dbType := viper.GetEnvConfig(dbname + ".dbType")
+	dbDebug := viper.GetEnvConfigBool(dbname + ".dbDebug")
+
+	connectString := dbUser + ":" + dbPasswd + "@tcp(" + dbHost + ":" + dbPort + ")/" + dbName + "?charset=utf8mb4&parseTime=true&loc=Local"
+	orm, err := gorm.Open(dbType, connectString)
+	if err != nil {
+		return nil, err
+	}
+
+	// 连接池的空闲数大小
+	orm.DB().SetMaxIdleConns(viper.C.GetInt(dbname + ".dbIdleconns_max"))
+	// 最大打开连接数
+	orm.DB().SetMaxOpenConns(viper.C.GetInt(dbname + ".dbOpenconns_max"))
+
+	if dbDebug {
+		// 开启Debug模式
+		orm = orm.Debug()
+	}
+	return orm, nil
+}
diff --git a/gorm/gorm_test.go b/orm/gorm_test.go
similarity index 93%
rename from gorm/gorm_test.go
rename to orm/gorm_test.go
index 2edf274..bab018b 100644
--- a/gorm/gorm_test.go
+++ b/orm/gorm_test.go
@@ -1,4 +1,4 @@
-package gorm
+package orm
 
 import (
 	"testing"
diff --git a/gorm/model.go b/orm/model.go
similarity index 98%
rename from gorm/model.go
rename to orm/model.go
index b4b5b0d..fb86f89 100644
--- a/gorm/model.go
+++ b/orm/model.go
@@ -1,4 +1,4 @@
-package gorm
+package orm
 
 import "github.com/jinzhu/gorm"