diff --git a/server/app/adminapi/logic/tcm/PrescriptionOrderLogic.php b/server/app/adminapi/logic/tcm/PrescriptionOrderLogic.php
index e9d61061..444b28a8 100644
--- a/server/app/adminapi/logic/tcm/PrescriptionOrderLogic.php
+++ b/server/app/adminapi/logic/tcm/PrescriptionOrderLogic.php
@@ -1547,7 +1547,15 @@ class PrescriptionOrderLogic
             return false;
         }
 
-        self::writeLog($id, $adminId, $adminInfo, 'complete', '订单完成，状态变更为「已完成」，实付金额更新为 ¥' . $linkedPayPaidTotal);
+        $unassignSummary = self::clearDiagnosisAssistantOnComplete((int) $order->diagnosis_id);
+
+        self::writeLog(
+            $id,
+            $adminId,
+            $adminInfo,
+            'complete',
+            '订单完成，状态变更为「已完成」，实付金额更新为 ¥' . $linkedPayPaidTotal . $unassignSummary
+        );
 
         $out = $order->toArray();
         self::maskInternalCostIfNeeded($out, $adminInfo);
@@ -1556,6 +1564,50 @@ class PrescriptionOrderLogic
         return $out;
     }
 
+    /**
+     * 完成订单时把关联诊单的 assistant_id 清空，让患者回到「待分配」状态
+     * 仅当该患者没有其它进行中的处方订单时才清空，避免误覆盖
+     *
+     * @return string 追加到操作日志的描述（无变更则返回空串）
+     */
+    private static function clearDiagnosisAssistantOnComplete(int $diagnosisId): string
+    {
+        if ($diagnosisId <= 0) {
+            return '';
+        }
+
+        try {
+            $diag = Diagnosis::where('id', $diagnosisId)->whereNull('delete_time')->find();
+            if (!$diag) {
+                return '';
+            }
+            $oldAssistant = (string) ($diag['assistant_id'] ?? '');
+            if ($oldAssistant === '' || $oldAssistant === '0') {
+                return '';
+            }
+
+            // 同一诊单下若仍有未完成/未取消的处方订单，则不清空
+            $pendingCount = PrescriptionOrder::where('diagnosis_id', $diagnosisId)
+                ->whereNull('delete_time')
+                ->whereNotIn('fulfillment_status', [3, 4])
+                ->count();
+            if ($pendingCount > 0) {
+                return '';
+            }
+
+            Diagnosis::where('id', $diagnosisId)
+                ->whereNull('delete_time')
+                ->update(['assistant_id' => '']);
+
+            return '；并已清空诊单医助分配（原 assistant_id=' . $oldAssistant . '），患者进入待分配状态';
+        } catch (\Throwable $e) {
+            Log::warning('clearDiagnosisAssistantOnComplete failed: ' . $e->getMessage(), [
+                'diagnosis_id' => $diagnosisId,
+            ]);
+            return '';
+        }
+    }
+
     /**
      * 列表行是否展示「上传甘草药方」（需配置甘草、处方审核通过、未上传过、有权限；不要求支付审核）。
      *
diff --git a/server/config/console.php b/server/config/console.php
index 0e803913..6e5036a2 100644
--- a/server/config/console.php
+++ b/server/config/console.php
@@ -24,5 +24,7 @@ return [
         'express:sync' => 'app\\command\\SyncTrackingNumbers',
         // 企业微信客户同步
         'qywx:sync-customer' => 'app\\command\\QywxSyncCustomer',
+        // 甘草订单物流路由同步（GET_TASK_ROUTE_LIST）
+        'gancao:sync-logistics' => 'app\\command\\GancaoSyncLogisticsRoute',
     ],
 ];