diff --git a/model/main.go b/model/main.go
index b93f01a2..08e3553a 100644
--- a/model/main.go
+++ b/model/main.go
@@ -235,6 +235,12 @@ func InitLogDB() (err error) {
 }
 
 func migrateDB() error {
+	// 修复旧版本留下的唯一索引，允许软删除后重新插入同名记录
+	if common.UsingMySQL {
+		// 旧索引可能不存在，忽略删除错误即可
+		_ = DB.Exec("ALTER TABLE models DROP INDEX uk_model_name;").Error
+		_ = DB.Exec("ALTER TABLE vendors DROP INDEX uk_vendor_name;").Error
+	}
 	if !common.UsingPostgreSQL {
 		return migrateDBFast()
 	}
@@ -264,6 +270,12 @@ func migrateDB() error {
 }
 
 func migrateDBFast() error {
+	// 修复旧版本留下的唯一索引，允许软删除后重新插入同名记录
+	if common.UsingMySQL {
+		_ = DB.Exec("ALTER TABLE models DROP INDEX uk_model_name;").Error
+		_ = DB.Exec("ALTER TABLE vendors DROP INDEX uk_vendor_name;").Error
+	}
+
 	var wg sync.WaitGroup
 
 	migrations := []struct {
diff --git a/model/model_meta.go b/model/model_meta.go
index 5ccd80c5..53b00f28 100644
--- a/model/model_meta.go
+++ b/model/model_meta.go
@@ -36,7 +36,7 @@ type BoundChannel struct {
 
 type Model struct {
     Id          int            `json:"id"`
-    ModelName   string         `json:"model_name" gorm:"size:128;not null;uniqueIndex:uk_model_name,where:deleted_at IS NULL"`
+    ModelName   string         `json:"model_name" gorm:"size:128;not null;uniqueIndex:uk_model_name,priority:1"`
     Description string         `json:"description,omitempty" gorm:"type:text"`
     Tags        string         `json:"tags,omitempty" gorm:"type:varchar(255)"`
     VendorID    int            `json:"vendor_id,omitempty" gorm:"index"`
@@ -44,7 +44,7 @@ type Model struct {
     Status      int            `json:"status" gorm:"default:1"`
     CreatedTime int64          `json:"created_time" gorm:"bigint"`
     UpdatedTime int64          `json:"updated_time" gorm:"bigint"`
-    DeletedAt   gorm.DeletedAt `json:"-" gorm:"index"`
+    DeletedAt   gorm.DeletedAt `json:"-" gorm:"index;uniqueIndex:uk_model_name,priority:2"`
 
     BoundChannels []BoundChannel `json:"bound_channels,omitempty" gorm:"-"`
     EnableGroups []string       `json:"enable_groups,omitempty" gorm:"-"`
diff --git a/model/vendor_meta.go b/model/vendor_meta.go
index fd316156..b96b1d5c 100644
--- a/model/vendor_meta.go
+++ b/model/vendor_meta.go
@@ -14,13 +14,13 @@ import (
 
 type Vendor struct {
     Id          int            `json:"id"`
-    Name        string         `json:"name" gorm:"size:128;not null;uniqueIndex:uk_vendor_name,where:deleted_at IS NULL"`
+    Name        string         `json:"name" gorm:"size:128;not null;uniqueIndex:uk_vendor_name,priority:1"`
     Description string         `json:"description,omitempty" gorm:"type:text"`
     Icon        string         `json:"icon,omitempty" gorm:"type:varchar(128)"`
     Status      int            `json:"status" gorm:"default:1"`
     CreatedTime int64          `json:"created_time" gorm:"bigint"`
     UpdatedTime int64          `json:"updated_time" gorm:"bigint"`
-    DeletedAt   gorm.DeletedAt `json:"-" gorm:"index"`
+    DeletedAt   gorm.DeletedAt `json:"-" gorm:"index;uniqueIndex:uk_vendor_name,priority:2"`
 }
 
 // Insert 创建新的供应商记录