diff --git a/modules/mail/api.go b/modules/mail/api.go
index fc54b31de..f2b8af4c4 100644
--- a/modules/mail/api.go
+++ b/modules/mail/api.go
@@ -5,6 +5,9 @@ import (
 	"go_dreamfactory/modules"
 
 	"go_dreamfactory/lego/core"
+
+	"go.mongodb.org/mongo-driver/mongo"
+	"go.mongodb.org/mongo-driver/x/bsonx"
 )
 
 const (
@@ -26,6 +29,11 @@ func (this *Api_Comp) Init(service core.IService, module core.IModule, comp core
 	this.MComp_GateComp.Init(service, module, comp, options)
 	this.service = service
 	this.module = module.(*Mail)
+
+	//创建uid索引
+	this.module.db_comp.DB.CreateIndex(core.SqlTable(DB_MailTable), mongo.IndexModel{
+		Keys: bsonx.Doc{{Key: "uid", Value: bsonx.Int32(1)}},
+	})
 	return
 }