diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Shop/Order/ShopOrderAddRequest.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Shop/Order/ShopOrderAddRequest.cs
index 78d8e458..9eff8aa7 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Shop/Order/ShopOrderAddRequest.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Shop/Order/ShopOrderAddRequest.cs
@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Generic;
 
 namespace SKIT.FlurlHttpClient.Wechat.Api.Models
@@ -270,5 +270,12 @@ namespace SKIT.FlurlHttpClient.Wechat.Api.Models
         [Newtonsoft.Json.JsonProperty("aftersale_duration")]
         [System.Text.Json.Serialization.JsonPropertyName("aftersale_duration")]
         public int? AftersaleDuration { get; set; }
+
+        /// <summary>
+        /// 获取或设置跟踪 ID。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("trace_id")]
+        [System.Text.Json.Serialization.JsonPropertyName("trace_id")]
+        public string? TraceId { get; set; }
     }
 }
diff --git a/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/Shop/Order/ShopOrderAddRequest.json b/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/Shop/Order/ShopOrderAddRequest.json
index 8721bd4f..4f33d4cd 100644
--- a/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/Shop/Order/ShopOrderAddRequest.json
+++ b/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/Shop/Order/ShopOrderAddRequest.json
@@ -1,4 +1,4 @@
-{
+{
     "create_time": "2020-03-25 13:05:25",
     "out_order_id": "xxxxx",
     "openid": "oTVP50O53a7jgmawAmxKukNlq3XI",
@@ -40,6 +40,10 @@
         "city": "城市，选填",
         "town": "乡镇，选填"
     },
+    "fund_type": 1,
+    "expire_time": 1642076428,
+    "trace_id": "1_lkbvxXM-MpYZMC5hoIa8c1rqdFyUjMLoKNYsaKBFRoE",
+    "aftersale_duration": 7,
     "default_receiving_address": {
         "city": "广州市",
         "country": "中国",
@@ -48,7 +52,5 @@
         "receiver_name": "我爱我家",
         "tel_number": "18712345678",
         "town": "温柔乡"
-    },
-    "fund_type": 1,
-    "expire_time": 1642076428
+    }
 }