diff --git a/model/entity/ad_creative.go b/model/entity/ad_creative.go
index 7ae820f..5d78a83 100644
--- a/model/entity/ad_creative.go
+++ b/model/entity/ad_creative.go
@@ -36,7 +36,6 @@ type AdCreative struct {
 
 	// 技术信息
 	MimeType     string `bson:"mimeType" json:"mimeType"`         // MIME类型
-	FileHash     string `bson:"fileHash" json:"fileHash"`         // 文件哈希值
 	Source       string `bson:"source" json:"source"`             // 来源：upload、sync、generate
 	BackupURL    string `bson:"backupUrl" json:"backupUrl"`       // 备份URL
 	CDNURL       string `bson:"cdnUrl" json:"cdnUrl"`             // CDN加速URL