diff --git a/application/common/Model/Task.php b/application/common/Model/Task.php
index b0aacf1..cfc7fd2 100644
--- a/application/common/Model/Task.php
+++ b/application/common/Model/Task.php
@@ -110,6 +110,12 @@ class Task extends CommonModel
         if (isset($data['pri'])) {
             $type = 'pri';
         }
+        if (isset($data['begin_time'])) {
+            $type = 'setBeginTime';
+            if (!$data['begin_time']) {
+                $type = 'clearBeginTime';
+            }
+        }
         if (isset($data['end_time'])) {
             $type = 'setEndTime';
             if (!$data['end_time']) {
diff --git a/application/project/behavior/Task.php b/application/project/behavior/Task.php
index 15aece1..ee8c185 100644
--- a/application/project/behavior/Task.php
+++ b/application/project/behavior/Task.php
@@ -114,6 +114,14 @@ class Task
                 $icon = 'user-delete';
                 $remark = '移除了参与者 ' . $toMember['name'];
                 break;
+            case 'setBeginTime':
+                $icon = 'calendar';
+                $remark = '更新开始时间为 ' . date('m月d日 H:i', strtotime($task['begin_time']));
+                break;
+            case 'clearBeginTime':
+                $icon = 'calendar';
+                $remark = '清除了开始时间 ';
+                break;
             case 'setEndTime':
                 $icon = 'calendar';
                 $remark = '更新截止时间为 ' . date('m月d日 H:i', strtotime($task['end_time']));