diff --git a/app/src/main/java/com/duolebo/blyrobot/data/ImageUploadTask.kt b/app/src/main/java/com/duolebo/blyrobot/data/ImageUploadTask.kt
index 37cbee2654a62de5bc17f3c33c11232c8abf9202..acb190adee7f1d92befd42848c3aef7157408f9a 100644
--- a/app/src/main/java/com/duolebo/blyrobot/data/ImageUploadTask.kt
+++ b/app/src/main/java/com/duolebo/blyrobot/data/ImageUploadTask.kt
@@ -2,11 +2,15 @@ package com.duolebo.blyrobot.data
 
 import android.content.Context
 import android.util.Log
+import com.duolebo.blyrobot.tools.FtpManager
+import com.duolebo.blyrobot.util.AppUtil
 import com.duolebo.blyrobot.util.Config
 import net.gotev.uploadservice.*
 import net.gotev.uploadservice.ftp.FTPUploadRequest
 import net.gotev.uploadservice.ftp.UnixPermissions
 import java.io.File
+import java.util.*
+import kotlin.collections.ArrayList
 
 /**
  * 图片上传任务
@@ -24,6 +28,10 @@ class ImageUploadTask {
     var isRunning = false
 
     private var context: Context
+    private var uploadCheckTimer: Timer? = null
+    private var isUploadChecking = false
+    private var checkDelay = 5 * 60 * 1000L
+    private var checkCount = 0
 
     constructor(context: Context) {
         this.context = context
@@ -45,6 +53,9 @@ class ImageUploadTask {
         if (isUploadRunning())
             return false
 
+        if (this.isUploadChecking)
+            return false
+
         return true
     }
 
@@ -58,8 +69,85 @@ class ImageUploadTask {
     }
 
     fun start() {
+
+        if (this.uploadImages.isEmpty()) {
+            uploadTaskListener?.onComplete()
+            return
+        }
+
         this.isRunning = true
         Thread { uploadImage() }.start()
+
+        // 预计每张图片上传时间是3秒
+        startUploadCheck(3 * 1000L * this.uploadImages.size)
+    }
+
+    // 由于ftp库存在bug，这里启动一个定时器进行超时上传检测
+    private fun startUploadCheck(delay: Long) {
+        Log.i(TAG, "startUploadCheck with delay: $delay")
+        this.checkDelay = delay
+        uploadCheckTimer?.cancel()
+
+        if (this.checkCount >= 3) {
+            Log.i(TAG, "check time out, quit this job")
+            uploadTaskListener?.onComplete()
+            return
+        }
+
+        uploadCheckTimer = Timer()
+        uploadCheckTimer!!.schedule(object : TimerTask() {
+            override fun run() {
+                checkUpload()
+            }
+        }, delay)
+
+        this.checkCount++
+    }
+
+    private fun checkUpload() {
+        Log.i(TAG, "check image upload")
+        if (isUploadRunning()) {
+            startUploadCheck(this.checkDelay / 3)
+            return
+        }
+
+        this.isUploadChecking = true
+        val lastUploadPos = getLastUploadImagePos()
+        Log.i(TAG, "get last upload pos:$lastUploadPos")
+        val size = this.uploadImages.size
+        // 移除所有已经上传的图片
+        val reUploadImages = this.uploadImages.subList(lastUploadPos, size - 1)
+        this.uploadImages.removeAll(reUploadImages)
+        this.reUpload = true
+        this.isUploadChecking = false
+    }
+
+    // 通过检查url是否存在找到最后上传图片的位置
+    private fun getLastUploadImagePos(): Int {
+        val res: Int
+        val size = this.uploadImages.size
+        var checkPos = size / 2
+        var halfPos = checkPos
+        while (true) {
+            val exist = AppUtil.existsUrl(this.uploadImages[checkPos])
+            if (exist) {
+                checkPos += halfPos / 2
+            } else {
+                checkPos -= halfPos / 2
+            }
+
+            halfPos /= 2
+
+            if (halfPos == 0) {
+                res = if (exist)
+                    checkPos
+                else
+                    checkPos - 1
+                break
+            }
+        }
+
+        return res
     }
 
     private fun uploadImage() {
@@ -74,13 +162,21 @@ class ImageUploadTask {
                     .setDelegate(uploadImageCallback())
                     .setMaxRetries(4)
 
+            val unExistFiles = ArrayList<String>()
             this.uploadImages.forEach {
                 val uploadFile = File(it)
                 if (uploadFile.exists()) {
                     uploadRequest.addFileToUpload(it, Config.instance.getFtpRemotePath() + uploadFile.name)
+                } else {
+                    unExistFiles.add(it)
                 }
             }
 
+            // 删除不存在的图片记录
+            if (!unExistFiles.isEmpty()) {
+                this.uploadImages.removeAll(unExistFiles)
+            }
+
             this.uploadId = uploadRequest.startUpload()
             Log.i(TAG, "upload id $uploadId")
         } catch (exc: Exception) {
@@ -90,6 +186,7 @@ class ImageUploadTask {
 
     private fun uploadComplete(errorCount: Int) {
         Log.i(TAG, "upload errorCount: $errorCount")
+        uploadCheckTimer?.cancel()
         this.isRunning = false
         if (errorCount > 0 && errorCount > this.uploadImages.size / 3) {
             this.reUpload = true
@@ -104,7 +201,6 @@ class ImageUploadTask {
         }
 
         uploadTaskListener?.onComplete()
-
     }
 
     /**
diff --git a/app/src/main/java/com/duolebo/blyrobot/util/AppUtil.kt b/app/src/main/java/com/duolebo/blyrobot/util/AppUtil.kt
index 89b235df39974e49f18f22e0ca735c651e2c6a6c..84162a13349777792391bee0233d4a3f5cb9e589 100644
--- a/app/src/main/java/com/duolebo/blyrobot/util/AppUtil.kt
+++ b/app/src/main/java/com/duolebo/blyrobot/util/AppUtil.kt
@@ -23,8 +23,6 @@ import android.R.attr.versionName
 import android.content.pm.PackageInfo
 
 
-
-
 object AppUtil {
 
     fun deleteFile(file: File?, fileFilter: FileFilter) {
@@ -229,7 +227,7 @@ object AppUtil {
         }
     }
 
-    fun exists(url: String): Boolean {
+    fun existsUrl(url: String): Boolean {
         return try {
             HttpURLConnection.setFollowRedirects(false)
             val con = URL(url).openConnection() as HttpURLConnection