diff --git a/backend/services/repo.go b/backend/services/repo.go
index 8e5f02b0..9acc8387 100644
--- a/backend/services/repo.go
+++ b/backend/services/repo.go
@@ -55,20 +55,31 @@ func DownloadRepo(fullName string, userId bson.ObjectId) (err error) {
 	}
 
 	// 创建爬虫
-	spider := model.Spider{
-		Id:          bson.NewObjectId(),
-		Name:        spiderName,
-		DisplayName: spiderName,
-		Type:        constants.Customized,
-		Src:         spiderPath,
-		ProjectId:   bson.ObjectIdHex(constants.ObjectIdNull),
-		FileId:      bson.ObjectIdHex(constants.ObjectIdNull),
-		UserId:      userId,
-	}
-	if err := spider.Add(); err != nil {
-		log.Error("add spider error: " + err.Error())
-		debug.PrintStack()
-		return err
+	spider := model.GetSpiderByName(spiderName)
+	if spider.Name == "" {
+		// 新增
+		spider := model.Spider{
+			Id:          bson.NewObjectId(),
+			Name:        spiderName,
+			DisplayName: spiderName,
+			Type:        constants.Customized,
+			Src:         spiderPath,
+			ProjectId:   bson.ObjectIdHex(constants.ObjectIdNull),
+			FileId:      bson.ObjectIdHex(constants.ObjectIdNull),
+			UserId:      userId,
+		}
+		if err := spider.Add(); err != nil {
+			log.Error("add spider error: " + err.Error())
+			debug.PrintStack()
+			return err
+		}
+	} else {
+		// 更新
+		if err := spider.Save(); err != nil {
+			log.Error("save spider error: " + err.Error())
+			debug.PrintStack()
+			return err
+		}
 	}
 
 	// 上传爬虫
diff --git a/frontend/src/components/InfoView/TaskInfoView.vue b/frontend/src/components/InfoView/TaskInfoView.vue
index a36923b2..1fd32852 100644
--- a/frontend/src/components/InfoView/TaskInfoView.vue
+++ b/frontend/src/components/InfoView/TaskInfoView.vue
@@ -71,6 +71,9 @@
       </el-form>
     </el-row>
     <el-row class="button-container">
+      <el-button size="small" type="warning" icon="el-icon-refresh" @click="onRestart">
+        {{ $t('Restart') }}
+      </el-button>
       <el-button v-if="isRunning" size="small" type="danger" icon="el-icon-video-pause" @click="onStop">
         {{ $t('Stop') }}
       </el-button>
@@ -100,13 +103,28 @@
       }
     },
     methods: {
-      onRestart() {
-      },
       onStop() {
         this.$store.dispatch('task/cancelTask', this.$route.params.id)
           .then(() => {
             this.$message.success(`Task "${this.$route.params.id}" has been sent signal to stop`)
           })
+        this.$st.sendEv('任务详情', '概览', '停止任务')
+      },
+      onRestart() {
+        this.$confirm(this.$t('Are you sure to restart this task?'), this.$t('Notification'), {
+          confirmButtonText: this.$t('Confirm'),
+          cancelButtonText: this.$t('Cancel'),
+          type: 'warning'
+        }).then(() => {
+          this.$store.dispatch('task/restartTask', this.taskForm._id)
+            .then(() => {
+              this.$message({
+                type: 'success',
+                message: this.$t('Restarted successfully')
+              })
+            })
+          this.$st.sendEv('任务详情', '概览', '重新开始任务')
+        })
       },
       getTime(str) {
         if (!str || str.match('^0001')) return 'NA'