diff --git a/main.go b/main.go
index 5e4d14d..77d23aa 100644
--- a/main.go
+++ b/main.go
@@ -55,7 +55,6 @@ func main() {
 	}()
 	defer exec.DockerContainer.RemoveContainer()
 	defer sqlite3.CloseDB()
-	sqlite3.InitGormDB()
 	go func() {
 		const reconnectDelay = 5 * time.Second
 		for !stopRun {
diff --git a/sqlite3/gorm.go b/sqlite3/gorm.go
index 3ba3e23..279a9e5 100644
--- a/sqlite3/gorm.go
+++ b/sqlite3/gorm.go
@@ -1,12 +1,16 @@
 package sqlite3
 
 import (
+	"sync"
+
 	"gorm.io/driver/sqlite"
 	"gorm.io/gorm"
 )
 
 var db *gorm.DB
 
+var OnceInitGormDB sync.Once
+
 func InitGormDB() {
 	var err error
 	db, err = gorm.Open(sqlite.Open("data.db"), &gorm.Config{})
@@ -16,27 +20,30 @@ func InitGormDB() {
 }
 
 func GetGormDB() *gorm.DB {
+	if db == nil {
+		OnceInitGormDB.Do(InitGormDB)
+	}
 	return db
 }
 
 // TryCreateTable 使用GORM执行原始SQL创建表语句
 func TryCreateTable(query string) error {
-	return db.Exec(query).Error
+	return GetGormDB().Exec(query).Error
 }
 
 // AutoMigrate 使用GORM的自动迁移功能
 func AutoMigrate(models ...interface{}) error {
-	return db.AutoMigrate(models...)
+	return GetGormDB().AutoMigrate(models...)
 }
 
 // GetGormTx 获取GORM事务
 func GetGormTx() *gorm.DB {
-	return db.Begin()
+	return GetGormDB().Begin()
 }
 
 // CloseDB 关闭数据库连接
 func CloseDB() {
-	if sqlDB, err := db.DB(); err == nil {
+	if sqlDB, err := GetGormDB().DB(); err == nil {
 		sqlDB.Close()
 	}
 }