diff --git a/pkg/common/db/controller/msg.go b/pkg/common/db/controller/msg.go
index 2ae987b3d..daf668ca5 100644
--- a/pkg/common/db/controller/msg.go
+++ b/pkg/common/db/controller/msg.go
@@ -2,7 +2,6 @@ package controller
 
 import (
 	"fmt"
-	"sort"
 	"time"
 
 	"github.com/OpenIMSDK/Open-IM-Server/pkg/common/config"
@@ -339,20 +338,15 @@ func (db *commonMsgDatabase) BatchInsertChat2Cache(ctx context.Context, conversa
 }
 
 func (db *commonMsgDatabase) getMsgBySeqs(ctx context.Context, userID, conversationID string, seqs []int64) (totalMsgs []*sdkws.MsgData, err error) {
-	var totalUnExistSeqs []int64
 	for docID, seqs := range db.msg.GetDocIDSeqsMap(conversationID, seqs) {
 		//log.ZDebug(ctx, "getMsgBySeqs", "docID", docID, "seqs", seqs)
-		msgs, unexistSeqs, err := db.findMsgInfoBySeq(ctx, userID, docID, seqs)
+		msgs, err := db.findMsgInfoBySeq(ctx, userID, docID, seqs)
 		if err != nil {
 			return nil, err
 		}
 		for _, msg := range msgs {
 			totalMsgs = append(totalMsgs, convert.MsgDB2Pb(msg.Msg))
 		}
-		totalUnExistSeqs = append(totalUnExistSeqs, unexistSeqs...)
-	}
-	for _, unexistSeq := range totalUnExistSeqs {
-		totalMsgs = append(totalMsgs, db.msg.GenExceptionMessageBySeqs([]int64{unexistSeq})...)
 	}
 	return totalMsgs, nil
 }
@@ -395,55 +389,21 @@ func (db *commonMsgDatabase) getMsgBySeqs(ctx context.Context, userID, conversat
 // 	return seqMsgs, nil
 // }
 
-func (db *commonMsgDatabase) findMsgInfoBySeq(ctx context.Context, userID, docID string, seqs []int64) (totalMsgs []*unRelationTb.MsgInfoModel, unExistSeqs []int64, err error) {
-	msgs, err := db.msgDocDatabase.GetMsgBySeqIndexIn1Doc(ctx, userID, docID, seqs)
-	if err != nil {
-		return nil, nil, err
-	}
-	log.ZDebug(ctx, "findMsgInfoBySeq", "docID", docID, "seqs", seqs, "len(msgs)", len(msgs))
-	totalMsgs = append(totalMsgs, msgs...)
-	if len(msgs) == 0 {
-		unExistSeqs = seqs
-	} else {
-		for _, seq := range seqs {
-			for i, msg := range msgs {
-				if msg.Msg != nil && seq == msg.Msg.Seq {
-					break
-				}
-				if i == len(msgs)-1 {
-					unExistSeqs = append(unExistSeqs, seq)
-				}
-			}
-		}
-	}
-	return totalMsgs, unExistSeqs, nil
+func (db *commonMsgDatabase) findMsgInfoBySeq(ctx context.Context, userID, docID string, seqs []int64) (totalMsgs []*unRelationTb.MsgInfoModel, err error) {
+	return db.msgDocDatabase.GetMsgBySeqIndexIn1Doc(ctx, userID, docID, seqs)
 }
 
 func (db *commonMsgDatabase) getMsgBySeqsRange(ctx context.Context, userID string, conversationID string, allSeqs []int64, begin, end int64) (seqMsgs []*sdkws.MsgData, err error) {
 	log.ZDebug(ctx, "getMsgBySeqsRange", "conversationID", conversationID, "allSeqs", allSeqs, "begin", begin, "end", end)
-	var totalNotExistSeqs []int64
-	// mongo index
-	var delSeqs []int64
 	for docID, seqs := range db.msg.GetDocIDSeqsMap(conversationID, allSeqs) {
 		log.ZDebug(ctx, "getMsgBySeqsRange", "docID", docID, "seqs", seqs)
-		msgs, notExistSeqs, err := db.findMsgInfoBySeq(ctx, userID, docID, seqs)
+		msgs, err := db.findMsgInfoBySeq(ctx, userID, docID, seqs)
 		if err != nil {
 			return nil, err
 		}
-		log.ZDebug(ctx, "getMsgBySeqsRange", "unExistSeqs", notExistSeqs, "msgs", len(msgs))
 		for _, msg := range msgs {
-			if utils.IsContain(userID, msg.DelList) {
-				delSeqs = append(delSeqs, msg.Msg.Seq)
-			}
 			seqMsgs = append(seqMsgs, convert.MsgDB2Pb(msg.Msg))
 		}
-		totalNotExistSeqs = append(totalNotExistSeqs, notExistSeqs...)
-	}
-	log.ZDebug(ctx, "getMsgBySeqsRange", "totalNotExistSeqs", totalNotExistSeqs, "del seqs", delSeqs)
-	// 补未找到的消息
-	seqMsgs = append(seqMsgs, db.msg.GenExceptionMessageBySeqs(totalNotExistSeqs)...)
-	if len(totalNotExistSeqs) > 0 || len(delSeqs) > 0 {
-		sort.Sort(utils.MsgBySeq(seqMsgs))
 	}
 	return seqMsgs, nil
 }
diff --git a/pkg/common/db/unrelation/msg.go b/pkg/common/db/unrelation/msg.go
index d0545b7aa..050715064 100644
--- a/pkg/common/db/unrelation/msg.go
+++ b/pkg/common/db/unrelation/msg.go
@@ -239,8 +239,13 @@ func (m *MsgMongoDriver) GetMsgBySeqIndexIn1Doc(ctx context.Context, userID stri
 	if len(msgDocModel) == 0 {
 		return nil, errs.Wrap(mongo.ErrNoDocuments)
 	}
-	for i, msg := range msgDocModel[0].Msg {
-		if msg != nil && msg.Msg != nil && msg.Revoke != nil {
+	msgs = make([]*table.MsgInfoModel, 0, len(msgDocModel[0].Msg))
+	for i := range msgDocModel[0].Msg {
+		msg := msgDocModel[0].Msg[i]
+		if msg == nil || msg.Msg == nil {
+			continue
+		}
+		if msg.Revoke != nil {
 			var conversationID string
 			if index := strings.LastIndex(docID, ":"); index > 0 {
 				conversationID = docID[:index]
@@ -258,11 +263,12 @@ func (m *MsgMongoDriver) GetMsgBySeqIndexIn1Doc(ctx context.Context, userID stri
 				Detail: string(tipsData),
 			}
 			content, _ := json.Marshal(&elem)
-			msgDocModel[0].Msg[i].Msg.ContentType = constant.Revoke
-			msgDocModel[0].Msg[i].Msg.Content = string(content)
+			msg.Msg.ContentType = constant.Revoke
+			msg.Msg.Content = string(content)
 		}
+		msgs = append(msgs, msg)
 	}
-	return msgDocModel[0].Msg, nil
+	return msgs, nil
 }
 
 func (m *MsgMongoDriver) IsExistDocID(ctx context.Context, docID string) (bool, error) {