diff --git a/src/SKIT.FlurlHttpClient.Wechat.Work/Models/CgibinCorpGroup/Corp/CgibinCorpGroupCorpGetTokenRequest.cs b/src/SKIT.FlurlHttpClient.Wechat.Work/Models/CgibinCorpGroup/Corp/CgibinCorpGroupCorpGetTokenRequest.cs
index d51164c7..674b9853 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Work/Models/CgibinCorpGroup/Corp/CgibinCorpGroupCorpGetTokenRequest.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Work/Models/CgibinCorpGroup/Corp/CgibinCorpGroupCorpGetTokenRequest.cs
@@ -1,10 +1,17 @@
-namespace SKIT.FlurlHttpClient.Wechat.Work.Models
+namespace SKIT.FlurlHttpClient.Wechat.Work.Models
 {
     /// <summary>
     /// <para>表示 [POST] /cgi-bin/corpgroup/corp/gettoken 接口的请求。</para>
     /// </summary>
     public class CgibinCorpGroupCorpGetTokenRequest : WechatWorkRequest
     {
+        /// <summary>
+        /// 获取或设置业务类型。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("business_type")]
+        [System.Text.Json.Serialization.JsonPropertyName("business_type")]
+        public int? BusinessType { get; set; }
+
         /// <summary>
         /// 获取或设置下级企业 CorpId。
         /// </summary>
diff --git a/test/SKIT.FlurlHttpClient.Wechat.Work.UnitTests/ModelSamples/_/CgibinCorpGroup/Corp/CgibinCorpGroupCorpGetTokenRequest.json b/test/SKIT.FlurlHttpClient.Wechat.Work.UnitTests/ModelSamples/_/CgibinCorpGroup/Corp/CgibinCorpGroupCorpGetTokenRequest.json
new file mode 100644
index 00000000..153d8603
--- /dev/null
+++ b/test/SKIT.FlurlHttpClient.Wechat.Work.UnitTests/ModelSamples/_/CgibinCorpGroup/Corp/CgibinCorpGroupCorpGetTokenRequest.json
@@ -0,0 +1,5 @@
+{
+    "corpid": "wwabc",
+    "business_type": 1,
+    "agentid": 1111
+}
diff --git a/test/SKIT.FlurlHttpClient.Wechat.Work.UnitTests/ModelSamples/_/CgibinCorpGroup/Corp/CgibinCorpGroupCorpGetTokenResponse.json b/test/SKIT.FlurlHttpClient.Wechat.Work.UnitTests/ModelSamples/_/CgibinCorpGroup/Corp/CgibinCorpGroupCorpGetTokenResponse.json
new file mode 100644
index 00000000..b5db0973
--- /dev/null
+++ b/test/SKIT.FlurlHttpClient.Wechat.Work.UnitTests/ModelSamples/_/CgibinCorpGroup/Corp/CgibinCorpGroupCorpGetTokenResponse.json
@@ -0,0 +1,6 @@
+{
+    "errcode": 0,
+    "errmsg": "ok",
+    "access_token": "accesstoken000001",
+    "expires_in": 7200
+}