diff --git a/core/group_party.go b/core/group_party.go
index 7f71d1d..3b168ee 100644
--- a/core/group_party.go
+++ b/core/group_party.go
@@ -364,11 +364,12 @@ func (gp *groupParty) JoinParty(w http.ResponseWriter, r *http.Request) {
 // - (body) : 검색시 노출되는 document
 func (gp *groupParty) InviteToParty(w http.ResponseWriter, r *http.Request) {
 	var doc struct {
-		Gid     primitive.ObjectID
-		Mid     primitive.ObjectID
-		Target  primitive.ObjectID
-		Inviter bson.M
-		Invitee bson.M
+		Gid             primitive.ObjectID
+		Mid             primitive.ObjectID
+		Target          primitive.ObjectID
+		Inviter         bson.M
+		Invitee         bson.M
+		InitialPartyDoc bson.M
 	}
 
 	if err := gocommon.MakeDecoder(r).Decode(&doc); err != nil {
@@ -409,12 +410,13 @@ func (gp *groupParty) InviteToParty(w http.ResponseWriter, r *http.Request) {
 
 	if gd == nil {
 		gid = primitive.NewObjectID()
-		gd, err = gp.createGroup(gid, mid, doc.Inviter)
+		gd, err = gp.createGroup(gid, mid, doc.Inviter, doc.InitialPartyDoc)
 		if err != nil {
 			logger.Println("InviteToParty failed. gp.createGroup() return err :", err)
 			w.WriteHeader(http.StatusInternalServerError)
 			return
 		}
+
 		// 내가 wshandler room에 입장
 		gp.enterRoom(gid, mid)
 		gp.rh.JSONSet(mid.Hex(), "$.party", bson.M{"id": gid.Hex()})
@@ -648,7 +650,7 @@ func (gp *groupParty) QueryPartyMembers(w http.ResponseWriter, r *http.Request)
 	}
 }
 
-func (gp *groupParty) createGroup(newid groupID, charge accountID, chargeDoc bson.M) (*partyDoc, error) {
+func (gp *groupParty) createGroup(newid groupID, charge accountID, chargeDoc bson.M, initialGroupDoc bson.M) (*partyDoc, error) {
 	tid := makeTid(newid, charge)
 
 	gd := &partyDoc{
@@ -660,15 +662,27 @@ func (gp *groupParty) createGroup(newid groupID, charge accountID, chargeDoc bso
 			},
 		},
 		InCharge: tid,
+		Gid:      newid.Hex(),
 
 		rh: gp.rh,
 		id: newid,
 	}
 
-	_, err := gp.rh.JSONSet(gd.strid(), "$", gd, gocommon.RedisonSetOptionNX)
+	var err error
+	if initialGroupDoc != nil {
+		initialGroupDoc["_members"] = gd.Members
+		initialGroupDoc["_incharge"] = gd.InCharge
+		initialGroupDoc["_gid"] = gd.Gid
+
+		_, err = gp.rh.JSONSet(gd.strid(), "$", initialGroupDoc, gocommon.RedisonSetOptionNX)
+	} else {
+		_, err = gp.rh.JSONSet(gd.strid(), "$", gd, gocommon.RedisonSetOptionNX)
+	}
+
 	if err != nil {
 		return nil, err
 	}
+
 	return gd, nil
 }