diff --git a/Aria/src/main/java/com/arialyy/aria/core/common/AbsFileer.java b/Aria/src/main/java/com/arialyy/aria/core/common/AbsFileer.java
index 01d2fb9f..54690796 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/common/AbsFileer.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/common/AbsFileer.java
@@ -63,7 +63,6 @@ public abstract class AbsFileer<ENTITY extends AbsNormalEntity, TASK_ENTITY exte
    */
   private static final long SUB_LEN = 1024 * 1024;
   private Timer mTimer;
-  private long mUpdateInterval = 1000;
 
   protected AbsFileer(IEventListener listener, TASK_ENTITY taskEntity) {
     mListener = listener;
@@ -98,7 +97,7 @@ public abstract class AbsFileer<ENTITY extends AbsNormalEntity, TASK_ENTITY exte
   }
 
   /**
-   * 开始流程
+   * 开始下载流程
    */
   private void startFlow() {
     mConstance.resetState();
@@ -112,7 +111,7 @@ public abstract class AbsFileer<ENTITY extends AbsNormalEntity, TASK_ENTITY exte
       mConstance.THREAD_NUM = mTotalThreadNum;
       handleNoSupportBP();
     } else {
-      mTotalThreadNum = isNewTask ? (getNewTaskThreadNum()) : mStartThreadNum + mCompleteThreadNum;
+      mTotalThreadNum = isNewTask ? (getNewTaskThreadNum()) : mStartThreadNum;
       mConstance.THREAD_NUM = mTotalThreadNum;
       handleBreakpoint();
     }
@@ -146,7 +145,7 @@ public abstract class AbsFileer<ENTITY extends AbsNormalEntity, TASK_ENTITY exte
           mListener.onProgress(mConstance.CURRENT_LOCATION);
         }
       }
-    }, 0, mUpdateInterval);
+    }, 0, 1000);
   }
 
   protected void closeTimer() {
@@ -226,25 +225,11 @@ public abstract class AbsFileer<ENTITY extends AbsNormalEntity, TASK_ENTITY exte
     return mListener;
   }
 
-  /**
-   * 设置定时器更新间隔
-   *
-   * @param interval 单位毫秒，不能小于0
-   */
-  protected long setUpdateInterval(long interval) {
-    if (interval < 0) {
-      ALog.w(TAG, "更新间隔不能小于0，默认为1000毫秒");
-      return 1000;
-    }
-    mUpdateInterval = interval;
-    return interval;
-  }
-
   /**
    * 检查任务是否是新任务，新任务条件：
    * 1、文件不存在
-   * 2、记录文件不存在
-   * 3、记录文件缺失或不匹配
+   * 2、下载记录文件不存在
+   * 3、下载记录文件缺失或不匹配
    * 4、数据库记录不存在
    * 5、不支持断点，则是新任务
    */
@@ -264,9 +249,10 @@ public abstract class AbsFileer<ENTITY extends AbsNormalEntity, TASK_ENTITY exte
     int num = 0;
     for (Object key : keys) {
       String str = String.valueOf(key);
+      Object state = pro.getProperty(str);
       if (str.contains("_record_")) {
         num++;
-      } else if (str.contains("_state_")) {
+      } else if (state != null && str.contains("_state_") && Integer.parseInt(state + "") == 1) {
         mCompleteThreadNum++;
       }
     }
@@ -289,7 +275,7 @@ public abstract class AbsFileer<ENTITY extends AbsNormalEntity, TASK_ENTITY exte
   /**
    * 恢复记录地址
    *
-   * @return true 表示完成
+   * @return true 表示下载完成
    */
   private boolean resumeRecordLocation(int i, long startL, long endL) {
     mConstance.CURRENT_LOCATION += endL - startL;
@@ -357,11 +343,12 @@ public abstract class AbsFileer<ENTITY extends AbsNormalEntity, TASK_ENTITY exte
       //如果有记录，则恢复下载
       if (!isNewTask && record != null && Long.parseLong(record + "") >= 0) {
         Long r = Long.parseLong(record + "");
-        if (r > startL) {
+        //记录的位置需要在线程区间中
+        if (startL < r && r < (i == (mTotalThreadNum - 1) ? fileLength : endL)) {
           mConstance.CURRENT_LOCATION += r - startL;
           startL = r;
         }
-        ALog.d(TAG, "任务【" + mEntity.getFileName() + "】线程__" + i + "__恢复");
+        ALog.d(TAG, "任务【" + mEntity.getFileName() + "】线程__" + i + "__恢复下载");
         recordL[rl] = i;
         rl++;
       } else {
@@ -380,7 +367,7 @@ public abstract class AbsFileer<ENTITY extends AbsNormalEntity, TASK_ENTITY exte
   }
 
   /**
-   * 启动单线程处理任务
+   * 启动单线程下载任务
    */
   private void startSingleTask(int[] recordL) {
     if (mConstance.CURRENT_LOCATION > 0) {
@@ -405,7 +392,7 @@ public abstract class AbsFileer<ENTITY extends AbsNormalEntity, TASK_ENTITY exte
   protected abstract void handleNewTask();
 
   /**
-   * 处理不支持断点的任务
+   * 处理不支持断点的下载
    */
   private void handleNoSupportBP() {
     SubThreadConfig<TASK_ENTITY> config = new SubThreadConfig<>();
diff --git a/Aria/src/main/java/com/arialyy/aria/core/common/StateConstance.java b/Aria/src/main/java/com/arialyy/aria/core/common/StateConstance.java
index 386c55f0..e42e3f86 100644
--- a/Aria/src/main/java/com/arialyy/aria/core/common/StateConstance.java
+++ b/Aria/src/main/java/com/arialyy/aria/core/common/StateConstance.java
@@ -63,7 +63,7 @@ public class StateConstance {
    * 所有子线程是否都已经完成下载
    */
   public boolean isComplete() {
-    return COMPLETE_THREAD_NUM == THREAD_NUM;
+    return COMPLETE_THREAD_NUM >= THREAD_NUM;
   }
 
   /**