diff --git a/mongo/export.go b/mongo/export.go
index 312e905..b464133 100644
--- a/mongo/export.go
+++ b/mongo/export.go
@@ -42,6 +42,27 @@ func Close() {
 	internal.Close(_manager)
 }
 
+// GetDatabase 获取数据库
+// platform: 平台id
+// database: 数据库名称
+func GetDatabase(platform, database string) (*Database, error) {
+	if _manager == nil {
+		return nil, errors.New("mongo manager is nil, please call Init() first")
+	}
+
+	return _manager.GetDatabase(platform, database)
+}
+
+// GetGlobalDatabase 获取全局库
+// database: 数据库名称
+func GetGlobalDatabase(database string) (*Database, error) {
+	if _manager == nil {
+		return nil, errors.New("mongo manager is nil, please call Init() first")
+	}
+
+	return _manager.GetDatabase("global", database)
+}
+
 // GetGlobalCollection 获取全局库
 // database: 数据库名称
 // collection: 集合名称
diff --git a/mongo/internal/mongo.go b/mongo/internal/mongo.go
index 1c2282f..9d54b9c 100644
--- a/mongo/internal/mongo.go
+++ b/mongo/internal/mongo.go
@@ -98,6 +98,14 @@ type Manager struct {
 }
 
 func (m *Manager) GetCollection(key, database, collection string) (*Collection, error) {
+	d, err := m.GetDatabase(key, database)
+	if err != nil {
+		return nil, err
+	}
+	return d.GetCollection(collection)
+}
+
+func (m *Manager) GetDatabase(key, database string) (*Database, error) {
 	switch key {
 	case "global":
 		v, ok := m.global.Load(database)
@@ -113,7 +121,7 @@ func (m *Manager) GetCollection(key, database, collection string) (*Collection,
 			m.global.Store(database, v)
 		}
 		d, _ := v.(*Database)
-		return d.GetCollection(collection)
+		return d, nil
 
 	default:
 		var mp *sync.Map
@@ -137,7 +145,7 @@ func (m *Manager) GetCollection(key, database, collection string) (*Collection,
 			mp.Store(database, v)
 		}
 		d, _ := v.(*Database)
-		return d.GetCollection(collection)
+		return d, nil
 	}
 }