diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Events/MarketingMemberCardOpen/MarketingMemberCardResource.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Events/MarketingMemberCardOpen/MarketingMemberCardResource.cs
new file mode 100644
index 00000000..23c26176
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Events/MarketingMemberCardOpen/MarketingMemberCardResource.cs
@@ -0,0 +1,69 @@
+using System;
+
+namespace SKIT.FlurlHttpClient.Wechat.TenpayV3.Events
+{
+    /// <summary>
+    /// <para>表示 MEMBERCARD.ACTIVATE_CARD 通知的数据。</para>
+    /// <para>表示 MEMBERCARD.USERCARD_MANAGE 通知的数据。</para>
+    /// </summary>
+    public class MarketingMemberCardResource : WechatTenpayEvent.Types.IDecryptedResource
+    {
+        /// <summary>
+        /// 获取或设置事件类型。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("event_type")]
+        [System.Text.Json.Serialization.JsonPropertyName("event_type")]
+        public string EventType { get; set; } = default!;
+
+        /// <summary>
+        /// 获取或设置会员卡 ID。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("card_id")]
+        [System.Text.Json.Serialization.JsonPropertyName("card_id")]
+        public string CardId { get; set; } = default!;
+
+        /// <summary>
+        /// 获取或设置会员卡 Code。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("code")]
+        [System.Text.Json.Serialization.JsonPropertyName("code")]
+        public string? Code { get; set; }
+
+        /// <summary>
+        /// 获取或设置用户唯一标识。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("openid")]
+        [System.Text.Json.Serialization.JsonPropertyName("openid")]
+        public string OpenId { get; set; } = default!;
+
+        /// <summary>
+        /// 获取或设置用户统一标识。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("unionid")]
+        [System.Text.Json.Serialization.JsonPropertyName("unionid")]
+        public string? UnionId { get; set; }
+
+        /// <summary>
+        /// 获取或设置场景值。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("activate_scene")]
+        [System.Text.Json.Serialization.JsonPropertyName("activate_scene")]
+        public string? SceneString { get; set; }
+
+        /// <summary>
+        /// 获取或设置自定义场景值。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("outer_str")]
+        [System.Text.Json.Serialization.JsonPropertyName("outer_str")]
+        public string? OuterString { get; set; }
+
+        /// <summary>
+        /// 获取或设置事件时间。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("event_time")]
+        [Newtonsoft.Json.JsonConverter(typeof(Newtonsoft.Json.Converters.RFC3339DateTimeOffsetConverter))]
+        [System.Text.Json.Serialization.JsonPropertyName("event_time")]
+        [System.Text.Json.Serialization.JsonConverter(typeof(System.Text.Json.Converters.RFC3339DateTimeOffsetConverter))]
+        public DateTimeOffset EventTime { get; set; }
+    }
+}
diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Extensions/WechatTenpayClientExecuteMarketingMemberCardOpenExtensions.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Extensions/WechatTenpayClientExecuteMarketingMemberCardOpenExtensions.cs
index 4f024831..0f404f02 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Extensions/WechatTenpayClientExecuteMarketingMemberCardOpenExtensions.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Extensions/WechatTenpayClientExecuteMarketingMemberCardOpenExtensions.cs
@@ -281,5 +281,45 @@ namespace SKIT.FlurlHttpClient.Wechat.TenpayV3
             return await client.SendRequestWithJsonAsync<Models.UpdateMarketingMemberCardOpenCardCodeResponse>(flurlReq, data: request, cancellationToken: cancellationToken);
         }
         #endregion
+
+        #region Callback
+        /// <summary>
+        /// <para>异步调用 [POST] /marketing/membercard-open/callback 接口。</para>
+        /// <para>REF: https://pay.weixin.qq.com/wiki/doc/apiv3/wxpay/marketing/membercard_open/chapter6_1.shtml </para>
+        /// </summary>
+        /// <param name="client"></param>
+        /// <param name="request"></param>
+        /// <param name="cancellationToken"></param>
+        /// <returns></returns>
+        public static async Task<Models.UpdateMarketingMemberCardOpenCallbackResponse> ExecuteUpdateMarketingMemberCardOpenCallbackAsync(this WechatTenpayClient client, Models.UpdateMarketingMemberCardOpenCallbackRequest request, CancellationToken cancellationToken = default)
+        {
+            if (client is null) throw new ArgumentNullException(nameof(client));
+            if (request is null) throw new ArgumentNullException(nameof(request));
+
+            IFlurlRequest flurlReq = client
+                .CreateRequest(request, HttpMethod.Post, "marketing", "membercard-open", "callback");
+
+            return await client.SendRequestWithJsonAsync<Models.UpdateMarketingMemberCardOpenCallbackResponse>(flurlReq, data: request, cancellationToken: cancellationToken);
+        }
+
+        /// <summary>
+        /// <para>异步调用 [GET] /marketing/membercard-open/callback 接口。</para>
+        /// <para>REF: https://pay.weixin.qq.com/wiki/doc/apiv3/wxpay/marketing/membercard_open/chapter6_2.shtml </para>
+        /// </summary>
+        /// <param name="client"></param>
+        /// <param name="request"></param>
+        /// <param name="cancellationToken"></param>
+        /// <returns></returns>
+        public static async Task<Models.GetMarketingMemberCardOpenCallbackResponse> ExecuteGetMarketingMemberCardOpenCallbackAsync(this WechatTenpayClient client, Models.GetMarketingMemberCardOpenCallbackRequest request, CancellationToken cancellationToken = default)
+        {
+            if (client is null) throw new ArgumentNullException(nameof(client));
+            if (request is null) throw new ArgumentNullException(nameof(request));
+
+            IFlurlRequest flurlReq = client
+                .CreateRequest(request, HttpMethod.Get, "marketing", "membercard-open", "callback");
+
+            return await client.SendRequestWithJsonAsync<Models.GetMarketingMemberCardOpenCallbackResponse>(flurlReq, data: request, cancellationToken: cancellationToken);
+        }
+        #endregion
     }
 }
diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/MarketingMemberCardOpen/Callback/GetMarketingMemberCardOpenCallbackRequest.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/MarketingMemberCardOpen/Callback/GetMarketingMemberCardOpenCallbackRequest.cs
new file mode 100644
index 00000000..f8cd93cb
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/MarketingMemberCardOpen/Callback/GetMarketingMemberCardOpenCallbackRequest.cs
@@ -0,0 +1,9 @@
+namespace SKIT.FlurlHttpClient.Wechat.TenpayV3.Models
+{
+    /// <summary>
+    /// <para>表示 [GET] /marketing/membercard-open/callback 接口的请求。</para>
+    /// </summary>
+    public class GetMarketingMemberCardOpenCallbackRequest : WechatTenpayRequest
+    {
+    }
+}
diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/MarketingMemberCardOpen/Callback/GetMarketingMemberCardOpenCallbackResponse.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/MarketingMemberCardOpen/Callback/GetMarketingMemberCardOpenCallbackResponse.cs
new file mode 100644
index 00000000..8d21069c
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/MarketingMemberCardOpen/Callback/GetMarketingMemberCardOpenCallbackResponse.cs
@@ -0,0 +1,22 @@
+namespace SKIT.FlurlHttpClient.Wechat.TenpayV3.Models
+{
+    /// <summary>
+    /// <para>表示 [GET] /marketing/membercard-open/callback 接口的响应。</para>
+    /// </summary>
+    public class GetMarketingMemberCardOpenCallbackResponse : WechatTenpayResponse
+    {
+        /// <summary>
+        /// 获取或设置微信商户号。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("mchid")]
+        [System.Text.Json.Serialization.JsonPropertyName("mchid")]
+        public string MerchantId { get; set; } = default!;
+
+        /// <summary>
+        /// 获取或设置通知地址。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("notify_url")]
+        [System.Text.Json.Serialization.JsonPropertyName("notify_url")]
+        public string NotifyUrl { get; set; } = default!;
+    }
+}
diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/MarketingMemberCardOpen/Callback/UpdateMarketingMemberCardOpenCallbackRequest.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/MarketingMemberCardOpen/Callback/UpdateMarketingMemberCardOpenCallbackRequest.cs
new file mode 100644
index 00000000..cc288be7
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/MarketingMemberCardOpen/Callback/UpdateMarketingMemberCardOpenCallbackRequest.cs
@@ -0,0 +1,15 @@
+namespace SKIT.FlurlHttpClient.Wechat.TenpayV3.Models
+{
+    /// <summary>
+    /// <para>表示 [POST] /marketing/membercard-open/callback 接口的请求。</para>
+    /// </summary>
+    public class UpdateMarketingMemberCardOpenCallbackRequest : WechatTenpayRequest
+    {
+        /// <summary>
+        /// 获取或设置通知地址。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("notify_url")]
+        [System.Text.Json.Serialization.JsonPropertyName("notify_url")]
+        public string NotifyUrl { get; set; } = string.Empty;
+    }
+}
diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/MarketingMemberCardOpen/Callback/UpdateMarketingMemberCardOpenCallbackResponse.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/MarketingMemberCardOpen/Callback/UpdateMarketingMemberCardOpenCallbackResponse.cs
new file mode 100644
index 00000000..4900f4ae
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/MarketingMemberCardOpen/Callback/UpdateMarketingMemberCardOpenCallbackResponse.cs
@@ -0,0 +1,9 @@
+namespace SKIT.FlurlHttpClient.Wechat.TenpayV3.Models
+{
+    /// <summary>
+    /// <para>表示 [POST] /marketing/membercard-open/callback 接口的响应。</para>
+    /// </summary>
+    public class UpdateMarketingMemberCardOpenCallbackResponse : GetMarketingMemberCardOpenCallbackResponse
+    {
+    }
+}
diff --git a/test/SKIT.FlurlHttpClient.Wechat.TenpayV3.UnitTests/EventSamples/MarketingMemberCardOpen/MarketingMemberCardResource.json b/test/SKIT.FlurlHttpClient.Wechat.TenpayV3.UnitTests/EventSamples/MarketingMemberCardOpen/MarketingMemberCardResource.json
new file mode 100644
index 00000000..09b8e4ae
--- /dev/null
+++ b/test/SKIT.FlurlHttpClient.Wechat.TenpayV3.UnitTests/EventSamples/MarketingMemberCardOpen/MarketingMemberCardResource.json
@@ -0,0 +1,9 @@
+{
+    "event_type": "MEMBER_CARD_ACTIVATE",
+    "event_time": "2019-12-17T10:35:53+08:00",
+    "openid": "obLatjnx9gnqzS4myYGmLZ7LgLBA",
+    "unionid": "obLatjvNtj7wO79ewoQBVIUEArg0",
+    "card_id": "paCkC00igoi8VmVpDvapnUhkN99w",
+    "code": "289560490049",
+    "outer_str": "sz_store_001"
+}
\ No newline at end of file
diff --git a/test/SKIT.FlurlHttpClient.Wechat.TenpayV3.UnitTests/ModelSamples/MarketingMemberCardOpen/Callback/GetMarketingMemberCardOpenCallbackRequest.json b/test/SKIT.FlurlHttpClient.Wechat.TenpayV3.UnitTests/ModelSamples/MarketingMemberCardOpen/Callback/GetMarketingMemberCardOpenCallbackRequest.json
new file mode 100644
index 00000000..22fdca1b
--- /dev/null
+++ b/test/SKIT.FlurlHttpClient.Wechat.TenpayV3.UnitTests/ModelSamples/MarketingMemberCardOpen/Callback/GetMarketingMemberCardOpenCallbackRequest.json
@@ -0,0 +1 @@
+{}
\ No newline at end of file
diff --git a/test/SKIT.FlurlHttpClient.Wechat.TenpayV3.UnitTests/ModelSamples/MarketingMemberCardOpen/Callback/GetMarketingMemberCardOpenCallbackResponse.json b/test/SKIT.FlurlHttpClient.Wechat.TenpayV3.UnitTests/ModelSamples/MarketingMemberCardOpen/Callback/GetMarketingMemberCardOpenCallbackResponse.json
new file mode 100644
index 00000000..aadae39d
--- /dev/null
+++ b/test/SKIT.FlurlHttpClient.Wechat.TenpayV3.UnitTests/ModelSamples/MarketingMemberCardOpen/Callback/GetMarketingMemberCardOpenCallbackResponse.json
@@ -0,0 +1,4 @@
+{
+    "notify_url": "https://shangjia.com",
+    "mchid": "99999105"
+}
\ No newline at end of file
diff --git a/test/SKIT.FlurlHttpClient.Wechat.TenpayV3.UnitTests/ModelSamples/MarketingMemberCardOpen/Callback/UpdateMarketingMemberCardOpenCallbackRequest.json b/test/SKIT.FlurlHttpClient.Wechat.TenpayV3.UnitTests/ModelSamples/MarketingMemberCardOpen/Callback/UpdateMarketingMemberCardOpenCallbackRequest.json
new file mode 100644
index 00000000..c8d417fc
--- /dev/null
+++ b/test/SKIT.FlurlHttpClient.Wechat.TenpayV3.UnitTests/ModelSamples/MarketingMemberCardOpen/Callback/UpdateMarketingMemberCardOpenCallbackRequest.json
@@ -0,0 +1,3 @@
+{
+    "notify_url": "https://shangjia.com"
+}
\ No newline at end of file
diff --git a/test/SKIT.FlurlHttpClient.Wechat.TenpayV3.UnitTests/ModelSamples/MarketingMemberCardOpen/Callback/UpdateMarketingMemberCardOpenCallbackResponse.json b/test/SKIT.FlurlHttpClient.Wechat.TenpayV3.UnitTests/ModelSamples/MarketingMemberCardOpen/Callback/UpdateMarketingMemberCardOpenCallbackResponse.json
new file mode 100644
index 00000000..aadae39d
--- /dev/null
+++ b/test/SKIT.FlurlHttpClient.Wechat.TenpayV3.UnitTests/ModelSamples/MarketingMemberCardOpen/Callback/UpdateMarketingMemberCardOpenCallbackResponse.json
@@ -0,0 +1,4 @@
+{
+    "notify_url": "https://shangjia.com",
+    "mchid": "99999105"
+}
\ No newline at end of file