diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Extensions/WechatApiClientExecuteChannelsExtensions.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Extensions/WechatApiClientExecuteChannelsExtensions.cs
index 2e5144c9..72abbe1c 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Api/Extensions/WechatApiClientExecuteChannelsExtensions.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/Extensions/WechatApiClientExecuteChannelsExtensions.cs
@@ -195,6 +195,54 @@ namespace SKIT.FlurlHttpClient.Wechat.Api
             return await client.SendFlurlRequestAsJsonAsync<Models.ChannelsECAftersaleGetComplaintOrderResponse>(flurlReq, data: request, cancellationToken: cancellationToken).ConfigureAwait(false);
         }
         #endregion
+
+        #region ECAftersale/Reason
+        /// <summary>
+        /// <para>异步调用 [POST] /channels/ec/aftersale/reason/get 接口。</para>
+        /// <para>
+        /// REF: <br/>
+        /// <![CDATA[ https://developers.weixin.qq.com/doc/channels/API/aftersale/getaftersalereason.html ]]>
+        /// </para>
+        /// </summary>
+        /// <param name="client"></param>
+        /// <param name="request"></param>
+        /// <param name="cancellationToken"></param>
+        /// <returns></returns>
+        public static async Task<Models.ChannelsECAftersaleReasonGetResponse> ExecuteChannelsECAftersaleReasonGetAsync(this WechatApiClient client, Models.ChannelsECAftersaleReasonGetRequest 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
+                .CreateFlurlRequest(request, HttpMethod.Post, "channels", "ec", "aftersale", "reason", "get")
+                .SetQueryParam("access_token", request.AccessToken);
+
+            return await client.SendFlurlRequestAsJsonAsync<Models.ChannelsECAftersaleReasonGetResponse>(flurlReq, data: request, cancellationToken: cancellationToken).ConfigureAwait(false);
+        }
+
+        /// <summary>
+        /// <para>异步调用 [POST] /channels/ec/aftersale/rejectreason/get 接口。</para>
+        /// <para>
+        /// REF: <br/>
+        /// <![CDATA[ https://developers.weixin.qq.com/doc/channels/API/aftersale/getrejectreason.html ]]>
+        /// </para>
+        /// </summary>
+        /// <param name="client"></param>
+        /// <param name="request"></param>
+        /// <param name="cancellationToken"></param>
+        /// <returns></returns>
+        public static async Task<Models.ChannelsECAftersaleRejectReasonGetResponse> ExecuteChannelsECAftersaleRejectReasonGetAsync(this WechatApiClient client, Models.ChannelsECAftersaleRejectReasonGetRequest 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
+                .CreateFlurlRequest(request, HttpMethod.Post, "channels", "ec", "aftersale", "rejectreason", "get")
+                .SetQueryParam("access_token", request.AccessToken);
+
+            return await client.SendFlurlRequestAsJsonAsync<Models.ChannelsECAftersaleRejectReasonGetResponse>(flurlReq, data: request, cancellationToken: cancellationToken).ConfigureAwait(false);
+        }
+        #endregion
         #endregion
 
         #region ECBasics
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECAftersale/Reason/ChannelsECAftersaleReasonGetRequest.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECAftersale/Reason/ChannelsECAftersaleReasonGetRequest.cs
new file mode 100644
index 00000000..5f8d223b
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECAftersale/Reason/ChannelsECAftersaleReasonGetRequest.cs
@@ -0,0 +1,9 @@
+namespace SKIT.FlurlHttpClient.Wechat.Api.Models
+{
+    /// <summary>
+    /// <para>表示 [POST] /channels/ec/aftersale/reason/get 接口的请求。</para>
+    /// </summary>
+    public class ChannelsECAftersaleReasonGetRequest : WechatApiRequest, IInferable<ChannelsECAftersaleReasonGetRequest, ChannelsECAftersaleReasonGetResponse>
+    {
+    }
+}
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECAftersale/Reason/ChannelsECAftersaleReasonGetResponse.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECAftersale/Reason/ChannelsECAftersaleReasonGetResponse.cs
new file mode 100644
index 00000000..487db9b7
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECAftersale/Reason/ChannelsECAftersaleReasonGetResponse.cs
@@ -0,0 +1,35 @@
+namespace SKIT.FlurlHttpClient.Wechat.Api.Models
+{
+    /// <summary>
+    /// <para>表示 [POST] /channels/ec/aftersale/reason/get 接口的响应。</para>
+    /// </summary>
+    public class ChannelsECAftersaleReasonGetResponse : WechatApiResponse
+    {
+        public static class Types
+        {
+            public class Reason
+            {
+                /// <summary>
+                /// 获取或设置售后原因。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("reason")]
+                [System.Text.Json.Serialization.JsonPropertyName("reason")]
+                public string ReasonType { get; set; } = default!;
+
+                /// <summary>
+                /// 获取或设置售后原因说明。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("reason_text")]
+                [System.Text.Json.Serialization.JsonPropertyName("reason_text")]
+                public string ReasonText { get; set; } = default!;
+            }
+        }
+
+        /// <summary>
+        /// 获取或设置售后原因列表。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("reason_list")]
+        [System.Text.Json.Serialization.JsonPropertyName("reason_list")]
+        public Types.Reason[] ReasonList { get; set; } = default!;
+    }
+}
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECAftersale/Reason/ChannelsECAftersaleRejectReasonGetRequest.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECAftersale/Reason/ChannelsECAftersaleRejectReasonGetRequest.cs
new file mode 100644
index 00000000..85d003cd
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECAftersale/Reason/ChannelsECAftersaleRejectReasonGetRequest.cs
@@ -0,0 +1,9 @@
+namespace SKIT.FlurlHttpClient.Wechat.Api.Models
+{
+    /// <summary>
+    /// <para>表示 [POST] /channels/ec/aftersale/rejectreason/get 接口的请求。</para>
+    /// </summary>
+    public class ChannelsECAftersaleRejectReasonGetRequest : WechatApiRequest, IInferable<ChannelsECAftersaleRejectReasonGetRequest, ChannelsECAftersaleRejectReasonGetResponse>
+    {
+    }
+}
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECAftersale/Reason/ChannelsECAftersaleRejectReasonGetResponse.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECAftersale/Reason/ChannelsECAftersaleRejectReasonGetResponse.cs
new file mode 100644
index 00000000..5eb8ae66
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Channels/ECAftersale/Reason/ChannelsECAftersaleRejectReasonGetResponse.cs
@@ -0,0 +1,42 @@
+namespace SKIT.FlurlHttpClient.Wechat.Api.Models
+{
+    /// <summary>
+    /// <para>表示 [POST] /channels/ec/aftersale/rejectreason/get 接口的响应。</para>
+    /// </summary>
+    public class ChannelsECAftersaleRejectReasonGetResponse : WechatApiResponse
+    {
+        public static class Types
+        {
+            public class RejectReason
+            {
+                /// <summary>
+                /// 获取或设置售后拒绝原因。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("reject_reason_type")]
+                [System.Text.Json.Serialization.JsonPropertyName("reject_reason_type")]
+                public int RejectReasonType { get; set; }
+
+                /// <summary>
+                /// 获取或设置售后拒绝原因说明。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("reject_reason_type_text")]
+                [System.Text.Json.Serialization.JsonPropertyName("reject_reason_type_text")]
+                public string RejectReasonText { get; set; } = default!;
+
+                /// <summary>
+                /// 获取或设置售后拒绝原因默认描述。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("reject_reason")]
+                [System.Text.Json.Serialization.JsonPropertyName("reject_reason")]
+                public string? RejectReasonDescription { get; set; }
+            }
+        }
+
+        /// <summary>
+        /// 获取或设置售后拒绝原因列表。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("reason_list")]
+        [System.Text.Json.Serialization.JsonPropertyName("reason_list")]
+        public Types.RejectReason[] RejectReasonList { get; set; } = default!;
+    }
+}
diff --git a/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/Channels/ECAftersale/Reason/ChannelsECAftersaleReasonGetResponse.json b/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/Channels/ECAftersale/Reason/ChannelsECAftersaleReasonGetResponse.json
new file mode 100644
index 00000000..340d890c
--- /dev/null
+++ b/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/Channels/ECAftersale/Reason/ChannelsECAftersaleReasonGetResponse.json
@@ -0,0 +1,18 @@
+{
+    "errcode": 0,
+    "errmsg": "ok",
+    "reason_list": [
+        {
+            "reason": "10000002",
+            "reason_text": "拍错/多拍"
+        },
+        {
+            "reason": "10000001",
+            "reason_text": "缺货"
+        },
+        {
+            "reason": "10000000",
+            "reason_text": "不想要了"
+        }
+    ]
+}
diff --git a/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/Channels/ECAftersale/Reason/ChannelsECAftersaleRejectReasonGetResponse.json b/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/Channels/ECAftersale/Reason/ChannelsECAftersaleRejectReasonGetResponse.json
new file mode 100644
index 00000000..69c316e8
--- /dev/null
+++ b/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/Channels/ECAftersale/Reason/ChannelsECAftersaleRejectReasonGetResponse.json
@@ -0,0 +1,21 @@
+{
+    "errcode": 0,
+    "errmsg": "ok",
+    "reason_list": [
+        {
+            "reject_reason_type": 21,
+            "reject_reason_type_text": "买家寄回包裹非本订单商品",
+            "reject_reason": "您的退货商品非本订单的商品，若有疑问请点击【联系商家】按钮与客服沟通"
+        },
+        {
+            "reject_reason_type": 20,
+            "reject_reason_type_text": "商品影响二次销售",
+            "reject_reason": "您的退货商品已影响二次销售，若有疑问请点击【联系商家】按钮与客服沟通"
+        },
+        {
+            "reject_reason_type": 19,
+            "reject_reason_type_text": "买家上传的单号有误，商家未收到货",
+            "reject_reason": "您填写的退货物流单号有误，目前无法查询到您退货物流的信息/未收到您的包裹，可点击【修改】按钮重新上传退货物流单号，若有疑问请点击【联系商家】按钮与客服沟通"
+        }
+    ]
+}