diff --git a/yuthon_will_task/models/yuthon_will_task.py b/yuthon_will_task/models/yuthon_will_task.py
index a60128f48..9b4d1e393 100644
--- a/yuthon_will_task/models/yuthon_will_task.py
+++ b/yuthon_will_task/models/yuthon_will_task.py
@@ -11,7 +11,7 @@ class YuthonWillTask(models.Model):
     _name = 'yuthon.will.task'
     _description = '日程'
     _rec_name = 'name'
-    _order = 'request_hour_from desc'
+    _order = 'task_datetime desc'
 
     time_list = [
         ('0', '0:00'), ('0.25', '0:15'), ('0.5', '0:30'), ('0.75', '0:45'),
@@ -71,6 +71,7 @@ class YuthonWillTask(models.Model):
     start_date = fields.Date(string='开始日期', default=fields.Date.today)
     end_date = fields.Date(string='结束日期', default=fields.Date.today)
     task_time = fields.Char(string='任务时间', compute='_compute_task_time', store=True)
+    task_datetime = fields.Datetime(string='任务时间排序', compute='_compute_task_datetime', store=True)
     is_this_company = fields.Boolean(string='本公司', default=True)
     task_state = fields.Selection([('will', '待办'), ('done', '已办'), ('cancel', '取消')], default='will', string='状态', store=True)
 
@@ -166,6 +167,27 @@ class YuthonWillTask(models.Model):
         for record in will_ids:
             record._compute_task_time()
 
+    @api.depends('start_date', 'request_hour_from')
+    def _compute_task_datetime(self):
+        """将 start_date + request_hour_from 拼合为 Datetime，用于排序"""
+        for record in self:
+            if record.start_date and record.request_hour_from:
+                try:
+                    hour_float = float(record.request_hour_from)
+                    hours = int(hour_float)
+                    minutes = int(round((hour_float - hours) * 60))
+                    # 存储时转为UTC（界面显示是UTC+8，存储需减8小时）
+                    record.task_datetime = datetime(
+                        record.start_date.year,
+                        record.start_date.month,
+                        record.start_date.day,
+                        hours, minutes, 0
+                    ) - timedelta(hours=8)
+                except Exception:
+                    record.task_datetime = False
+            else:
+                record.task_datetime = False
+
     @api.depends('start_date', 'task_week', 'request_hour_from', 'task_type', 'room_booking_id', 'room_booking_id.start_datetime', 'room_booking_id.stop_datetime')
     def _compute_task_time(self):
         for record in self:
diff --git a/yuthon_will_task/views/yuthon_will_task_views.xml b/yuthon_will_task/views/yuthon_will_task_views.xml
index 861baabbe..4b5c50b84 100644
--- a/yuthon_will_task/views/yuthon_will_task_views.xml
+++ b/yuthon_will_task/views/yuthon_will_task_views.xml
@@ -152,7 +152,8 @@
                   decoration-danger="priority == 'very_urgent'"
                   decoration-info="priority == 'urgent'"
                   decoration-success="priority == 'important'" create="false" edit="false"
-                  js_class="custom_task_tree_button" limit="15">
+                  js_class="custom_task_tree_button" limit="15" default_order="task_datetime desc">
+                <field name='task_datetime' column_invisible="1"/>
                 <field name='start_date' column_invisible="1"/>
                 <field name='task_time'/>
                 <field name='name' required="1"/>