diff --git a/Laravel/app/Http/Controllers/API/Third/CSharpController.php b/Laravel/app/Http/Controllers/API/Third/CSharpController.php
index 9d64f75..01d1bce 100644
--- a/Laravel/app/Http/Controllers/API/Third/CSharpController.php
+++ b/Laravel/app/Http/Controllers/API/Third/CSharpController.php
@@ -4,6 +4,7 @@
 
 use App\Http\Controllers\API\His\HisController;
 use App\Http\Controllers\Controller;
+use App\Services\Admin\YeWu\PlanListService;
 use Illuminate\Database\Schema\Blueprint;
 use Illuminate\Http\Request;
 use Illuminate\Support\Facades\DB;
@@ -191,6 +192,45 @@ public function CancelApply ($orderNo)
         Log::info('撤销推送申请单'.$orderNo);
         $entrust = DB::table('s_list')->where(['entrust_id' => $orderNo])->first();
         if ($entrust) {
+            // 医嘱作废：清理预约字段并释放号源
+            if ($entrust->is_nullify == 1 && $entrust->list_status != 0 && $entrust->roster_id) {
+                $rosterId = $entrust->roster_id;
+                $nowdatetime = date('Y-m-d H:i:s');
+                $clearData = [
+                    'list_status'           => 0,
+                    'reservation_date'      => null,
+                    'reservation_time'      => null,
+                    'reservation_sources'   => null,
+                    'services_group'        => null,
+                    'roster_id'             => null,
+                    'xuhao'                 => null,
+                    'department_id'         => null,
+                    'appointment_type_id'   => null,
+                    'appointment_use_plan_detail' => null,
+                    'canel_time'            => $nowdatetime,
+                    'is_emergency'          => 0,
+                    'updated_at'            => $nowdatetime,
+                ];
+                try {
+                    DB::beginTransaction();
+                    DB::table('s_list')->where('id', $entrust->id)->update($clearData);
+                    $planService = new PlanListService();
+                    $planService->correctUsedCount($rosterId);
+                    DB::table('s_list_log')->insert([
+                        'list_id'     => $entrust->id,
+                        'reg_num'     => $entrust->reg_num,
+                        'old_status'  => $entrust->list_status,
+                        'new_status'  => 0,
+                        'create_user' => 'MQ',
+                        'note'        => '医嘱作废',
+                        'data'        => json_encode($clearData, JSON_UNESCAPED_UNICODE),
+                    ]);
+                    DB::commit();
+                } catch (\Exception $e) {
+                    DB::rollBack();
+                    Log::error('医嘱作废清理失败: ' . $e->getMessage(), ['entrust_id' => $orderNo]);
+                }
+            }
             $guid = Str::uuid()->toString();
             $send_data = [
                 'Request' => [