diff --git a/src/SKIT.FlurlHttpClient.Wechat.Work/Events/Batch/BatchJobResultEvent.cs b/src/SKIT.FlurlHttpClient.Wechat.Work/Events/Batch/BatchJobResultEvent.cs
index c8306456..fa6454f4 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Work/Events/Batch/BatchJobResultEvent.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Work/Events/Batch/BatchJobResultEvent.cs
@@ -9,6 +9,7 @@
     /// <para>REF: https://developer.work.weixin.qq.com/document/path/90376 </para>
     /// <para>REF: https://developer.work.weixin.qq.com/document/path/91167 </para>
     /// <para>REF: https://developer.work.weixin.qq.com/document/path/90858 </para>
+    /// <para>REF: https://developer.work.weixin.qq.com/document/path/95797 </para>
     /// </summary>
     public class BatchJobResultEvent : WechatWorkEvent, WechatWorkEvent.Serialization.IXmlSerializable
     {
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Work/Events/Chain/ChangeChainEvent.cs b/src/SKIT.FlurlHttpClient.Wechat.Work/Events/Chain/ChangeChainEvent.cs
new file mode 100644
index 00000000..060b74e9
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.Wechat.Work/Events/Chain/ChangeChainEvent.cs
@@ -0,0 +1,54 @@
+namespace SKIT.FlurlHttpClient.Wechat.Work.Events
+{
+    /// <summary>
+    /// <para>表示 EVENT.change_chain 事件的数据。</para>
+    /// <para>REF: https://developer.work.weixin.qq.com/document/path/95796 </para>
+    /// </summary>
+    public class ChangeChainEvent : WechatWorkEvent, WechatWorkEvent.Serialization.IXmlSerializable
+    {
+        public static class Types
+        {
+            public class GroupIdList
+            {
+                /// <summary>
+                /// 获取或设置分组 ID 列表。
+                /// </summary>
+                [System.Xml.Serialization.XmlElement("GroupId", Type = typeof(int))]
+                public int[] Items { get; set; } = default!;
+            }
+
+            public class CorpIdList
+            {
+                /// <summary>
+                /// 获取或设置企业 ID 列表。
+                /// </summary>
+                [System.Xml.Serialization.XmlElement("CorpId", Type = typeof(string))]
+                public string[] Items { get; set; } = default!;
+            }
+        }
+
+        /// <summary>
+        /// 获取或设置操作类型。
+        /// </summary>
+        [System.Xml.Serialization.XmlElement("ChangeType")]
+        public string ActionType { get; set; } = default!;
+
+        /// <summary>
+        /// 获取或设置上下游 ID。
+        /// </summary>
+        [System.Xml.Serialization.XmlElement("ChainId")]
+        public string ChainId { get; set; } = default!;
+
+        /// <summary>
+        /// 获取或设置分组 ID 列表。
+        /// </summary>
+        [System.Xml.Serialization.XmlElement("GroupIds", IsNullable = true)]
+        public Types.GroupIdList? GroupIdList { get; set; }
+
+        /// <summary>
+        /// 获取或设置企业 ID 列表。
+        /// </summary>
+        [System.Xml.Serialization.XmlElement("CorpIds", IsNullable = true)]
+        public Types.CorpIdList? CorpIdList { get; set; }
+    }
+}
diff --git a/test/SKIT.FlurlHttpClient.Wechat.Work.UnitTests/EventSamples/Chain/ChangeChainEvent.xml b/test/SKIT.FlurlHttpClient.Wechat.Work.UnitTests/EventSamples/Chain/ChangeChainEvent.xml
new file mode 100644
index 00000000..bb7164d7
--- /dev/null
+++ b/test/SKIT.FlurlHttpClient.Wechat.Work.UnitTests/EventSamples/Chain/ChangeChainEvent.xml
@@ -0,0 +1,17 @@
+<xml>
+	<ToUserName><![CDATA[toUser]]></ToUserName>
+	<FromUserName><![CDATA[sys]]></FromUserName>
+	<CreateTime>1403610513</CreateTime>
+	<MsgType><![CDATA[event]]></MsgType>
+	<Event><![CDATA[change_chain]]></Event>
+	<ChangeType><![CDATA[create_chain]]></ChangeType>
+	<ChainId>![CDATA[xxxxxx]]</ChainId>
+	<GroupIds>
+		<GroupId>5</GroupId>
+		<GroupId>6</GroupId>
+	</GroupIds>
+	<CorpIds>
+		<CorpId>![CDATA[xxxxxx]]</CorpId>
+		<CorpId>![CDATA[xxxxxx]]</CorpId>
+	</CorpIds>
+</xml>