diff --git a/sys/db/db.go b/sys/db/db.go
index 9febbd88d..11ea3926a 100644
--- a/sys/db/db.go
+++ b/sys/db/db.go
@@ -6,6 +6,7 @@ import (
 	"fmt"
 	"go_dreamfactory/comm"
 	"go_dreamfactory/lego/sys/log"
+	"go_dreamfactory/lego/sys/mgo"
 	"go_dreamfactory/lego/utils/codec/json"
 	"go_dreamfactory/pb"
 	"io/ioutil"
@@ -85,6 +86,18 @@ func (this *DB) readercrossconf(path string) (err error) {
 					)
 					return
 				}
+				err = this.RegiestServerDBConn(&pb.ServiceDBInfo{
+					Serverid:        this.options.ServiceId,
+					ServerName:      this.options.ServiceId,
+					Owner:           this.options.CrossChannel,
+					CrossId:         this.options.CrossChannel,
+					RedisIsCluster:  this.options.RedisIsCluster,
+					RedisAddr:       this.options.RedisAddr,
+					RedisPassword:   this.options.RedisPassword,
+					RedisDb:         int32(this.options.RedisDB),
+					MongodbUrl:      this.options.MongodbUrl,
+					MongodbDatabase: this.options.MongodbDatabase,
+				})
 			} else {
 				err = this.ConnectServiceList()
 			}
@@ -173,7 +186,7 @@ func (this *DB) ServerDBConn(stage string) (conn *DBConn, err error) {
 	ok := false
 	conn, ok = this.servers[stage]
 	if !ok {
-		err = fmt.Errorf("DBConn:%s on init", stage)
+		conn, err = this.ConnectServerDBConn(stage)
 	}
 	return
 }
@@ -185,3 +198,36 @@ func (this *DB) GetServerTags() []string {
 	}
 	return keys
 }
+
+//链接到目标服务数据对象
+func (this *DB) ConnectServerDBConn(stage string) (conn *DBConn, err error) {
+	temp := &pb.ServiceDBInfo{}
+	if err = this.local.Mgo.FindOne("serverdata", bson.M{"cross": this.options.CrossChannel, "serverid": stage}).Decode(temp); err != nil {
+		return
+	}
+	if this.servers[temp.Serverid], err = newDBConn(this.options.Log, DBConfig{
+		RedisIsCluster:  temp.RedisIsCluster,
+		RedisAddr:       temp.RedisAddr,
+		RedisPassword:   temp.RedisPassword,
+		RedisDB:         int(temp.RedisDb),
+		MongodbUrl:      temp.MongodbUrl,
+		MongodbDatabase: temp.MongodbDatabase,
+	}); err != nil {
+		log.Error("comment db err!",
+			log.Field{Key: "stag", Value: temp.Serverid},
+			log.Field{Key: "db", Value: temp},
+			log.Field{Key: "err", Value: err.Error()},
+		)
+		return
+	}
+	conn = this.servers[temp.Serverid]
+	return
+}
+
+//注册本服数据到跨服
+func (this *DB) RegiestServerDBConn(info *pb.ServiceDBInfo) (err error) {
+	if this.cross.Mgo.FindOne("serverdata", bson.M{"cross": this.options.CrossChannel, "serverid": info.Serverid}).Err() == mgo.MongodbNil {
+		_, err = this.cross.Mgo.InsertOne("serverdata", info)
+	}
+	return
+}