diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Extensions/WechatTenpayClientExecuteMerchantSettlementExtensions.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Extensions/WechatTenpayClientExecuteMerchantSettlementExtensions.cs
new file mode 100644
index 00000000..26a82295
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Extensions/WechatTenpayClientExecuteMerchantSettlementExtensions.cs
@@ -0,0 +1,52 @@
+using System;
+using System.Net.Http;
+using System.Threading;
+using System.Threading.Tasks;
+using Flurl.Http;
+
+namespace SKIT.FlurlHttpClient.Wechat.TenpayV3
+{
+    /// <summary>
+    /// 为 <see cref="WechatTenpayClient"/> 提供从业机构特约商户结算规则 ID 管理相关的 API 扩展方法。
+    /// </summary>
+    public static class WechatTenpayClientExecuteMerchantSettlementExtensions
+    {
+        /// <summary>
+        /// <para>异步调用 [POST] /merchant-settlement/merchant-settle-rule-applications 接口。</para>
+        /// <para>REF: https://pay.weixin.qq.com/wiki/doc/apiv3_partner/Offline/apis/chapter3_1_1.shtml </para>
+        /// </summary>
+        /// <param name="client"></param>
+        /// <param name="request"></param>
+        /// <param name="cancellationToken"></param>
+        /// <returns></returns>
+        public static async Task<Models.CreateMerchantSettlementSettleRuleApplymentResponse> ExecuteCreateMerchantSettlementSettleRuleApplymentAsync(this WechatTenpayClient client, Models.CreateMerchantSettlementSettleRuleApplymentRequest 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, "merchant-settlement", "merchant-settle-rule-applications");
+
+            return await client.SendRequestWithJsonAsync<Models.CreateMerchantSettlementSettleRuleApplymentResponse>(flurlReq, data: request, cancellationToken: cancellationToken);
+        }
+
+        /// <summary>
+        /// <para>异步调用 [GET] /merchant-settlement/merchant-settle-rule-applications/{application_id} 接口。</para>
+        /// <para>REF: https://pay.weixin.qq.com/wiki/doc/apiv3_partner/Offline/apis/chapter3_1_2.shtml </para>
+        /// </summary>
+        /// <param name="client"></param>
+        /// <param name="request"></param>
+        /// <param name="cancellationToken"></param>
+        /// <returns></returns>
+        public static async Task<Models.GetMerchantSettlementSettleRuleApplicationByApplymentIdResponse> ExecuteGetMerchantSettlementSettleRuleApplicationByApplymentIdAsync(this WechatTenpayClient client, Models.GetMerchantSettlementSettleRuleApplicationByApplymentIdRequest 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, "merchant-settlement", "merchant-settle-rule-applications", request.ApplymentId);
+
+            return await client.SendRequestWithJsonAsync<Models.GetMerchantSettlementSettleRuleApplicationByApplymentIdResponse>(flurlReq, data: request, cancellationToken: cancellationToken);
+        }
+    }
+}
diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/Apply4Subject/GetApplyForSubjectApplymentByBusinessCodeResponse.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/Apply4Subject/GetApplyForSubjectApplymentByBusinessCodeResponse.cs
index d976a43e..07a5c42b 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/Apply4Subject/GetApplyForSubjectApplymentByBusinessCodeResponse.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/Apply4Subject/GetApplyForSubjectApplymentByBusinessCodeResponse.cs
@@ -1,4 +1,4 @@
-namespace SKIT.FlurlHttpClient.Wechat.TenpayV3.Models
+namespace SKIT.FlurlHttpClient.Wechat.TenpayV3.Models
 {
     /// <summary>
     /// <para>表示 [GET] /apply4subject/applyment 接口的响应。</para>
@@ -13,11 +13,11 @@
         public string ApplymentState { get; set; } = default!;
 
         /// <summary>
-        /// 获取或设置小程序码图片数据（经 Base64 编码）。
+        /// 获取或设置经 Base64 编码的小程序码图片数据。
         /// </summary>
         [Newtonsoft.Json.JsonProperty("qrcode_data")]
         [System.Text.Json.Serialization.JsonPropertyName("qrcode_data")]
-        public string? QrcodeData { get; set; }
+        public string? EncodingQrcodeData { get; set; }
 
         /// <summary>
         /// 获取或设置驳回参数。
diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/MarketingBank/UploadMarketingBankPackagesTasksResponse.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/MarketingBank/UploadMarketingBankPackagesTasksResponse.cs
index 0facc8c9..01bdc4e8 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/MarketingBank/UploadMarketingBankPackagesTasksResponse.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/MarketingBank/UploadMarketingBankPackagesTasksResponse.cs
@@ -1,4 +1,4 @@
-using System;
+using System;
 
 namespace SKIT.FlurlHttpClient.Wechat.TenpayV3.Models
 {
@@ -64,7 +64,7 @@ namespace SKIT.FlurlHttpClient.Wechat.TenpayV3.Models
         public int? SuccessUserCount { get; set; }
 
         /// <summary>
-        /// 获取或设置银行类型。
+        /// 获取或设置创建类型。
         /// </summary>
         [Newtonsoft.Json.JsonProperty("create_time")]
         [Newtonsoft.Json.JsonConverter(typeof(Newtonsoft.Json.Converters.RFC3339DateTimeOffsetConverter))]
@@ -73,7 +73,7 @@ namespace SKIT.FlurlHttpClient.Wechat.TenpayV3.Models
         public DateTimeOffset CreateTime { get; set; }
 
         /// <summary>
-        /// 获取或设置银行类型。
+        /// 获取或设置最后更新类型。
         /// </summary>
         [Newtonsoft.Json.JsonProperty("update_time")]
         [Newtonsoft.Json.JsonConverter(typeof(Newtonsoft.Json.Converters.RFC3339NullableDateTimeOffsetConverter))]
diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/MarketingSettlement/CreateMerchantSettlementSettleRuleApplymentRequest.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/MarketingSettlement/CreateMerchantSettlementSettleRuleApplymentRequest.cs
new file mode 100644
index 00000000..d63e295a
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/MarketingSettlement/CreateMerchantSettlementSettleRuleApplymentRequest.cs
@@ -0,0 +1,36 @@
+namespace SKIT.FlurlHttpClient.Wechat.TenpayV3.Models
+{
+    /// <summary>
+    /// <para>表示 [POST] /merchant-settlement/merchant-settle-rule-applications 接口的请求。</para>
+    /// </summary>
+    public class CreateMerchantSettlementSettleRuleApplymentRequest : WechatTenpayRequest
+    {
+        /// <summary>
+        /// 获取或设置从业机构号。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("acquiring_bank_id")]
+        [System.Text.Json.Serialization.JsonPropertyName("acquiring_bank_id")]
+        public string AcquiringBankId { get; set; } = string.Empty;
+
+        /// <summary>
+        /// 获取或设置特约商户号。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("sub_mchid")]
+        [System.Text.Json.Serialization.JsonPropertyName("sub_mchid")]
+        public string SubMerchantId { get; set; } = string.Empty;
+
+        /// <summary>
+        /// 获取或设置渠道商户号。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("channel_id")]
+        [System.Text.Json.Serialization.JsonPropertyName("channel_id")]
+        public string ChannelId { get; set; } = string.Empty;
+
+        /// <summary>
+        /// 获取或设置结算规则 ID。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("settle_rule_id")]
+        [System.Text.Json.Serialization.JsonPropertyName("settle_rule_id")]
+        public int SettleRuleId { get; set; }
+    }
+}
diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/MarketingSettlement/CreateMerchantSettlementSettleRuleApplymentResponse.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/MarketingSettlement/CreateMerchantSettlementSettleRuleApplymentResponse.cs
new file mode 100644
index 00000000..d8863132
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/MarketingSettlement/CreateMerchantSettlementSettleRuleApplymentResponse.cs
@@ -0,0 +1,9 @@
+namespace SKIT.FlurlHttpClient.Wechat.TenpayV3.Models
+{
+    /// <summary>
+    /// <para>表示 [POST] /merchant-settlement/merchant-settle-rule-applications 接口的响应。</para>
+    /// </summary>
+    public class CreateMerchantSettlementSettleRuleApplymentResponse : GetMerchantSettlementSettleRuleApplicationByApplymentIdResponse
+    {
+    }
+}
diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/MarketingSettlement/GetMerchantSettlementSettleRuleApplicationByApplymentIdRequest.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/MarketingSettlement/GetMerchantSettlementSettleRuleApplicationByApplymentIdRequest.cs
new file mode 100644
index 00000000..b3a67160
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/MarketingSettlement/GetMerchantSettlementSettleRuleApplicationByApplymentIdRequest.cs
@@ -0,0 +1,15 @@
+namespace SKIT.FlurlHttpClient.Wechat.TenpayV3.Models
+{
+    /// <summary>
+    /// <para>表示 [GET] /merchant-settlement/merchant-settle-rule-applications/{application_id} 接口的请求。</para>
+    /// </summary>
+    public class GetMerchantSettlementSettleRuleApplicationByApplymentIdRequest : WechatTenpayRequest
+    {
+        /// <summary>
+        /// 获取或设置申请单编号。
+        /// </summary>
+        [Newtonsoft.Json.JsonIgnore]
+        [System.Text.Json.Serialization.JsonIgnore]
+        public string ApplymentId { get; set; } = string.Empty;
+    }
+}
diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/MarketingSettlement/GetMerchantSettlementSettleRuleApplicationByApplymentIdResponse.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/MarketingSettlement/GetMerchantSettlementSettleRuleApplicationByApplymentIdResponse.cs
new file mode 100644
index 00000000..fc6bcae2
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/MarketingSettlement/GetMerchantSettlementSettleRuleApplicationByApplymentIdResponse.cs
@@ -0,0 +1,68 @@
+using System;
+
+namespace SKIT.FlurlHttpClient.Wechat.TenpayV3.Models
+{
+    /// <summary>
+    /// <para>表示 [GET] /merchant-settlement/merchant-settle-rule-applications/{application_id} 接口的响应。</para>
+    /// </summary>
+    public class GetMerchantSettlementSettleRuleApplicationByApplymentIdResponse : WechatTenpayResponse
+    {
+        /// <summary>
+        /// 获取或设置申请单编号。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("application_id")]
+        [System.Text.Json.Serialization.JsonPropertyName("application_id")]
+        public string ApplymentId { get; set; } = default!;
+
+        /// <summary>
+        /// 获取或设置申请单处理信息。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("application_process_info")]
+        [System.Text.Json.Serialization.JsonPropertyName("application_process_info")]
+        public string ApplymentProcessInformation { get; set; } = default!;
+
+        /// <summary>
+        /// 获取或设置申请单状态。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("application_state")]
+        [System.Text.Json.Serialization.JsonPropertyName("application_state")]
+        public string? ApplymentState { get; set; }
+
+        /// <summary>
+        /// 获取或设置从业机构号。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("acquiring_bank_id")]
+        [System.Text.Json.Serialization.JsonPropertyName("acquiring_bank_id")]
+        public string? AcquiringBankId { get; set; }
+
+        /// <summary>
+        /// 获取或设置渠道商户号。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("channel_id")]
+        [System.Text.Json.Serialization.JsonPropertyName("channel_id")]
+        public string? ChannelId { get; set; }
+
+        /// <summary>
+        /// 获取或设置特约商户号。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("sub_mchid")]
+        [System.Text.Json.Serialization.JsonPropertyName("sub_mchid")]
+        public string? SubMerchantId { get; set; }
+
+        /// <summary>
+        /// 获取或设置结算规则 ID。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("settle_rule_id")]
+        [System.Text.Json.Serialization.JsonPropertyName("settle_rule_id")]
+        public int? SettleRuleId { get; set; }
+
+        /// <summary>
+        /// 获取或设置最后更新时间。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("update_time")]
+        [Newtonsoft.Json.JsonConverter(typeof(Newtonsoft.Json.Converters.RFC3339NullableDateTimeOffsetConverter))]
+        [System.Text.Json.Serialization.JsonPropertyName("update_time")]
+        [System.Text.Json.Serialization.JsonConverter(typeof(System.Text.Json.Converters.RFC3339NullableDateTimeOffsetConverter))]
+        public DateTimeOffset? UpdateTime { get; set; }
+    }
+}
diff --git a/test/SKIT.FlurlHttpClient.Wechat.TenpayV3.UnitTests/ModelSamples/MarketingSettlement/CreateMerchantSettlementSettleRuleApplymentRequest.json b/test/SKIT.FlurlHttpClient.Wechat.TenpayV3.UnitTests/ModelSamples/MarketingSettlement/CreateMerchantSettlementSettleRuleApplymentRequest.json
new file mode 100644
index 00000000..091ece36
--- /dev/null
+++ b/test/SKIT.FlurlHttpClient.Wechat.TenpayV3.UnitTests/ModelSamples/MarketingSettlement/CreateMerchantSettlementSettleRuleApplymentRequest.json
@@ -0,0 +1,6 @@
+{
+    "acquiring_bank_id": "1356485",
+    "channel_id": "20001111",
+    "sub_mchid": "1346578",
+    "settle_rule_id": 760
+}
diff --git a/test/SKIT.FlurlHttpClient.Wechat.TenpayV3.UnitTests/ModelSamples/MarketingSettlement/CreateMerchantSettlementSettleRuleApplymentResponse.json b/test/SKIT.FlurlHttpClient.Wechat.TenpayV3.UnitTests/ModelSamples/MarketingSettlement/CreateMerchantSettlementSettleRuleApplymentResponse.json
new file mode 100644
index 00000000..969d0ac6
--- /dev/null
+++ b/test/SKIT.FlurlHttpClient.Wechat.TenpayV3.UnitTests/ModelSamples/MarketingSettlement/CreateMerchantSettlementSettleRuleApplymentResponse.json
@@ -0,0 +1,10 @@
+{
+    "application_id": "20000011111",
+    "application_process_info": "正在处理中",
+    "application_state": "PROCESSING",
+    "update_time": "2015-05-20T13:29:35+08:00",
+    "acquiring_bank_id": "1356485",
+    "channel_id": "20001111",
+    "sub_mchid": "1346578",
+    "settle_rule_id": 760
+}
diff --git a/test/SKIT.FlurlHttpClient.Wechat.TenpayV3.UnitTests/ModelSamples/MarketingSettlement/GetMerchantSettlementSettleRuleApplicationByApplymentIdResponse.json b/test/SKIT.FlurlHttpClient.Wechat.TenpayV3.UnitTests/ModelSamples/MarketingSettlement/GetMerchantSettlementSettleRuleApplicationByApplymentIdResponse.json
new file mode 100644
index 00000000..5a97d72b
--- /dev/null
+++ b/test/SKIT.FlurlHttpClient.Wechat.TenpayV3.UnitTests/ModelSamples/MarketingSettlement/GetMerchantSettlementSettleRuleApplicationByApplymentIdResponse.json
@@ -0,0 +1,10 @@
+{
+    "application_id": "20000011111",
+    "application_process_info": "正在处理中",
+    "application_state": "PASSED",
+    "update_time": "2015-05-20T13:29:35+08:00",
+    "acquiring_bank_id": "1356485",
+    "channel_id": "20001111",
+    "sub_mchid": "1346578",
+    "settle_rule_id": 760
+}