diff --git a/cmd/main.go b/cmd/main.go
index 830dd60..708498a 100644
--- a/cmd/main.go
+++ b/cmd/main.go
@@ -2,10 +2,8 @@ package main
 
 import (
 	"data_prep/importfunc"
-	"fmt"
 )
 
 func main() {
-	fmt.Println("Importing")
 	importfunc.ImportUserIdMap()
 }
diff --git a/importfunc/generate_user_id_map.go b/importfunc/generate_user_id_map.go
index 9587e36..6256efc 100644
--- a/importfunc/generate_user_id_map.go
+++ b/importfunc/generate_user_id_map.go
@@ -8,14 +8,6 @@ import (
 )
 
 func GenerateUserIdMap() {
-	outfile, err := os.OpenFile("/Users/Caeru/dataprep/file/user_id_map.txt", os.O_WRONLY|os.O_CREATE, 0666)
-	if err != nil {
-		fmt.Printf("Open File Err : %v", err)
-	}
-
-	defer outfile.Close()
-
-	writer := bufio.NewWriter(outfile)
 
 	list := make([]int64, 0)
 	for i := int64(1000000); i < 100000000; i++ {
@@ -25,9 +17,33 @@ func GenerateUserIdMap() {
 		list[i], list[j] = list[j], list[i]
 	})
 
-	for i := range list {
-		outfile.WriteString(fmt.Sprintf("%v:%v\n", 1000000+i, list[i]))
+	j := 1
+	for i := 0; i < len(list); i += 1000000 {
+		lower := i
+		upper := i + 999999
+		if upper >= len(list) {
+			upper = len(list) - 1
+		}
+		WriteAsList(list[lower:upper], j)
+		j++
 	}
 
-	writer.Flush()
+}
+
+func WriteAsList(list []int64, seq int) {
+	pathurl := fmt.Sprintf("/Users/Caeru/Desktop/file/user_id_map%v.txt", seq)
+	outfile, err := os.OpenFile(pathurl, os.O_WRONLY|os.O_CREATE, 0666)
+	if err != nil {
+		fmt.Printf("Open File Err : %v", err)
+	}
+
+	defer outfile.Close()
+
+	writer := bufio.NewWriter(outfile)
+
+	for i := range list {
+		outfile.WriteString(fmt.Sprintf("%v:%v\n", 1000000*seq+i, list[i]))
+	}
+	writer.Flush()
+	fmt.Printf("%dth file has generated\n", seq)
 }
diff --git a/importfunc/import_user_id_map.go b/importfunc/import_user_id_map.go
index ff8f2eb..a590dff 100644
--- a/importfunc/import_user_id_map.go
+++ b/importfunc/import_user_id_map.go
@@ -1,9 +1,13 @@
 package importfunc
 
 import (
+	"bufio"
 	"context"
 	"fmt"
-	"math/rand"
+	"io"
+	"os"
+	"strconv"
+	"strings"
 
 	"data_prep/dbstruct"
 	"data_prep/mongo"
@@ -18,23 +22,49 @@ func ImportUserIdMap() {
 	}
 	ctx := context.Background()
 
-	// 打乱
-	list := make([]int64, 0)
-	for i := int64(1000000); i < 100000000; i++ {
-		list = append(list, i)
+	userIdSeq, err := mcli.GetUserIdImportSeq(ctx)
+	if err != nil {
+		fmt.Printf("GetUserIdImportSeq fail : %v", err)
+		return
 	}
-	rand.Shuffle(99000000, func(i, j int) {
-		list[i], list[j] = list[j], list[i]
-	})
 
-	for i := 0; i < len(list); i += 1000000 {
-		lower := i
-		upper := i + 999999
-		if upper >= len(list) {
-			upper = len(list) - 1
-		}
-		ImportAsList(mcli, ctx, list[lower:upper], i)
+	pathurl := fmt.Sprintf("/app/data_prep/file/user_id_map%v.txt", userIdSeq.Seq)
+
+	fmt.Printf("Importing %dth", userIdSeq.Seq)
+	infile, err := os.Open(pathurl)
+	if err != nil {
+		fmt.Printf("Open File Err : %v", err)
 	}
+	reader := bufio.NewReader(infile)
+	userIdMaps := make([]*dbstruct.UserIdMap, 0)
+	for {
+		str, err := reader.ReadString('\n')
+		if len(str) == 0 {
+			continue
+		}
+		strs := strings.Split(str, ":")
+		seq, _ := strconv.Atoi(strs[0])
+		userId, _ := strconv.Atoi(strs[1])
+		userIdMaps = append(userIdMaps, &dbstruct.UserIdMap{
+			Seq:    int64(seq),
+			UserId: int64(userId),
+		})
+		if len(userIdMaps) == 1000 {
+			err := mcli.CreateMappedUserIds(ctx, userIdMaps)
+			if err != nil {
+				fmt.Printf("CreateMappedUserIds err :%v", err)
+			}
+		}
+		if err == io.EOF {
+			err := mcli.CreateMappedUserIds(ctx, userIdMaps)
+			if err != nil {
+				fmt.Printf("CreateMappedUserIds err :%v", err)
+			}
+			break
+		}
+	}
+	infile.Close()
+	fmt.Printf("%dth imported", userIdSeq.Seq)
 
 	fmt.Printf("Import into test success")
 }
diff --git a/mongo/mongo.go b/mongo/mongo.go
index 81f1246..fc1382b 100644
--- a/mongo/mongo.go
+++ b/mongo/mongo.go
@@ -32,9 +32,10 @@ func NewMongo() (mongo *Mongo, err error) {
 }
 
 const (
-	DBUserIdSeq  = "user_id_seq"
-	COLUserIdSeq = "user_id_seq"
-	COLUserIdMap = "user_id_map"
+	DBUserIdSeq        = "user_id_seq"
+	COLUserIdSeq       = "user_id_seq"
+	COLUserIdMap       = "user_id_map"
+	COLUserIdImportSeq = "user_id_import_seq"
 
 	DBAccountIdSeq  = "account_id_seq"
 	COLAccountIdSeq = "account_id_seq"
@@ -74,6 +75,10 @@ func (m *Mongo) getColUserIdMap() *qmgo.Collection {
 	return m.clientMix.Database(DBUserIdSeq).Collection(COLUserIdMap)
 }
 
+func (m *Mongo) getColUserIdImportSeq() *qmgo.Collection {
+	return m.clientMix.Database(DBUserIdSeq).Collection(COLUserIdImportSeq)
+}
+
 // Account表
 func (m *Mongo) getColAccount() *qmgo.Collection {
 	return m.clientMix.Database(DBAccount).Collection(COLAccount)
@@ -336,3 +341,10 @@ func (m *Mongo) GetZoneVasByIds(ctx context.Context, zids []int64) ([]*dbstruct.
 	}
 	return list, nil
 }
+
+func (m *Mongo) GetUserIdImportSeq(ctx context.Context) (*dbstruct.UserIdSeq, error) {
+	col := m.getColUserIdImportSeq()
+	userIdSeqInstance := dbstruct.UserIdSeq{}
+	err := col.Find(ctx, qmgo.M{"_id": "seq_id"}).One(&userIdSeqInstance)
+	return &userIdSeqInstance, err
+}