diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Merchant/Express/MerchantExpressAddRequest.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Merchant/Express/MerchantExpressAddRequest.cs
new file mode 100644
index 00000000..e84251ee
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Merchant/Express/MerchantExpressAddRequest.cs
@@ -0,0 +1,134 @@
+using System;
+using System.Collections.Generic;
+
+namespace SKIT.FlurlHttpClient.Wechat.Api.Models
+{
+    /// <summary>
+    /// <para>表示 [POST] /merchant/express/add 接口的请求。</para>
+    /// </summary>
+    public class MerchantExpressAddRequest : WechatApiRequest
+    {
+        public static class Types
+        {
+            public class Template
+            {
+                public static class Types
+                {
+                    public class Charging
+                    {
+                        /// <summary>
+                        /// 获取或设置快递类型。
+                        /// </summary>
+                        [Newtonsoft.Json.JsonProperty("Type")]
+                        [System.Text.Json.Serialization.JsonPropertyName("Type")]
+                        public int Type { get; set; }
+
+                        /// <summary>
+                        /// 获取或设置默认邮费计算方法。
+                        /// </summary>
+                        [Newtonsoft.Json.JsonProperty("Normal")]
+                        [System.Text.Json.Serialization.JsonPropertyName("Normal")]
+                        public NormalCharging Normal { get; set; } = new NormalCharging();
+
+                        /// <summary>
+                        /// 获取或设置指定地区邮费计算方法。
+                        /// </summary>
+                        [Newtonsoft.Json.JsonProperty("Custom")]
+                        [System.Text.Json.Serialization.JsonPropertyName("Custom")]
+                        public IList<CustomCharging> CustomList { get; set; } = new List<CustomCharging>();
+                    }
+
+                    public class NormalCharging
+                    {
+                        /// <summary>
+                        /// 获取或设置起始计费数量。
+                        /// </summary>
+                        [Newtonsoft.Json.JsonProperty("StartStandards")]
+                        [System.Text.Json.Serialization.JsonPropertyName("StartStandards")]
+                        public int StartStandards { get; set; }
+
+                        /// <summary>
+                        /// 获取或设置起始计费金额（单位：分）。
+                        /// </summary>
+                        [Newtonsoft.Json.JsonProperty("StartFees")]
+                        [System.Text.Json.Serialization.JsonPropertyName("StartFees")]
+                        public int StartFee { get; set; }
+
+                        /// <summary>
+                        /// 获取或设置递增计费数量。
+                        /// </summary>
+                        [Newtonsoft.Json.JsonProperty("AddStandards")]
+                        [System.Text.Json.Serialization.JsonPropertyName("AddStandards")]
+                        public int AddStandards { get; set; }
+
+                        /// <summary>
+                        /// 获取或设置递增计费金额（单位：分）。
+                        /// </summary>
+                        [Newtonsoft.Json.JsonProperty("AddFees")]
+                        [System.Text.Json.Serialization.JsonPropertyName("AddFees")]
+                        public int AddFee { get; set; }
+                    }
+
+                    public class CustomCharging : NormalCharging
+                    {
+                        /// <summary>
+                        /// 获取或设置目的地国家。
+                        /// </summary>
+                        [Newtonsoft.Json.JsonProperty("DestCountry")]
+                        [System.Text.Json.Serialization.JsonPropertyName("DestCountry")]
+                        public string DestinationCountry { get; set; } = string.Empty;
+
+                        /// <summary>
+                        /// 获取或设置目的地省份。
+                        /// </summary>
+                        [Newtonsoft.Json.JsonProperty("DestProvince")]
+                        [System.Text.Json.Serialization.JsonPropertyName("DestProvince")]
+                        public string DestinationProvince { get; set; } = string.Empty;
+
+                        /// <summary>
+                        /// 获取或设置目的地城市。
+                        /// </summary>
+                        [Newtonsoft.Json.JsonProperty("DestCity")]
+                        [System.Text.Json.Serialization.JsonPropertyName("DestCity")]
+                        public string DestinationCity { get; set; } = string.Empty;
+                    }
+                }
+
+                /// <summary>
+                /// 获取或设置模板名称。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("Name")]
+                [System.Text.Json.Serialization.JsonPropertyName("Name")]
+                public string Name { get; set; } = string.Empty;
+
+                /// <summary>
+                /// 获取或设置支付方式。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("Assumer")]
+                [System.Text.Json.Serialization.JsonPropertyName("Assumer")]
+                public int Assumer { get; set; }
+
+                /// <summary>
+                /// 获取或设置计费方式。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("Valuation")]
+                [System.Text.Json.Serialization.JsonPropertyName("Valuation")]
+                public int Valuation { get; set; }
+
+                /// <summary>
+                /// 获取或设置运费计算列表。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("TopFee")]
+                [System.Text.Json.Serialization.JsonPropertyName("TopFee")]
+                public IList<Types.Charging> ChargingList { get; set; } = new List<Types.Charging>();
+            }
+        }
+
+        /// <summary>
+        /// 获取或设置邮费模板信息。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("delivery_template")]
+        [System.Text.Json.Serialization.JsonPropertyName("delivery_template")]
+        public Types.Template Template { get; set; } = new Types.Template();
+    }
+}
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Merchant/Express/MerchantExpressAddResponse.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Merchant/Express/MerchantExpressAddResponse.cs
new file mode 100644
index 00000000..e6751ebb
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Merchant/Express/MerchantExpressAddResponse.cs
@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+
+namespace SKIT.FlurlHttpClient.Wechat.Api.Models
+{
+    /// <summary>
+    /// <para>表示 [POST] /merchant/express/add 接口的响应。</para>
+    /// </summary>
+    public class MerchantExpressAddResponse : WechatApiResponse
+    {
+        /// <summary>
+        /// 获取或设置邮费模板 ID。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("template_id")]
+        [System.Text.Json.Serialization.JsonPropertyName("template_id")]
+        public int TemplateId { get; set; }
+    }
+}
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Merchant/Express/MerchantExpressDeleteRequest.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Merchant/Express/MerchantExpressDeleteRequest.cs
new file mode 100644
index 00000000..84826b66
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Merchant/Express/MerchantExpressDeleteRequest.cs
@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+
+namespace SKIT.FlurlHttpClient.Wechat.Api.Models
+{
+    /// <summary>
+    /// <para>表示 [POST] /merchant/express/del 接口的请求。</para>
+    /// </summary>
+    public class MerchantExpressDeleteRequest : WechatApiRequest
+    {
+        /// <summary>
+        /// 获取或设置邮费模板 ID。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("template_id")]
+        [System.Text.Json.Serialization.JsonPropertyName("template_id")]
+        public int TemplateId { get; set; }
+    }
+}
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Merchant/Express/MerchantExpressDeleteResponse.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Merchant/Express/MerchantExpressDeleteResponse.cs
new file mode 100644
index 00000000..c0b01f03
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Merchant/Express/MerchantExpressDeleteResponse.cs
@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+
+namespace SKIT.FlurlHttpClient.Wechat.Api.Models
+{
+    /// <summary>
+    /// <para>表示 [POST] /merchant/express/del 接口的响应。</para>
+    /// </summary>
+    public class MerchantExpressDeleteResponse : WechatApiResponse
+    {
+    }
+}
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Merchant/Express/MerchantExpressGetAllRequest.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Merchant/Express/MerchantExpressGetAllRequest.cs
new file mode 100644
index 00000000..f155e40e
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Merchant/Express/MerchantExpressGetAllRequest.cs
@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+
+namespace SKIT.FlurlHttpClient.Wechat.Api.Models
+{
+    /// <summary>
+    /// <para>表示 [GET] /merchant/express/getall 接口的请求。</para>
+    /// </summary>
+    public class MerchantExpressGetAllRequest : WechatApiRequest
+    {
+    }
+}
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Merchant/Express/MerchantExpressGetAllResponse.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Merchant/Express/MerchantExpressGetAllResponse.cs
new file mode 100644
index 00000000..55f66e81
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Merchant/Express/MerchantExpressGetAllResponse.cs
@@ -0,0 +1,25 @@
+using System;
+using System.Collections.Generic;
+
+namespace SKIT.FlurlHttpClient.Wechat.Api.Models
+{
+    /// <summary>
+    /// <para>表示 [GET] /merchant/express/getall 接口的响应。</para>
+    /// </summary>
+    public class MerchantExpressGetAllResponse : WechatApiResponse
+    {
+        public static class Types
+        {
+            public class Template : MerchantExpressGetByIdResponse.Types.Template
+            {
+            }
+        }
+
+        /// <summary>
+        /// 获取或设置邮费模板列表。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("templates_info")]
+        [System.Text.Json.Serialization.JsonPropertyName("templates_info")]
+        public Types.Template[] TemplateList { get; set; } = default!;
+    }
+}
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Merchant/Express/MerchantExpressGetByIdRequest.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Merchant/Express/MerchantExpressGetByIdRequest.cs
new file mode 100644
index 00000000..b83e1620
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Merchant/Express/MerchantExpressGetByIdRequest.cs
@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+
+namespace SKIT.FlurlHttpClient.Wechat.Api.Models
+{
+    /// <summary>
+    /// <para>表示 [POST] /merchant/express/getbyid 接口的请求。</para>
+    /// </summary>
+    public class MerchantExpressGetByIdRequest : WechatApiRequest
+    {
+        /// <summary>
+        /// 获取或设置邮费模板 ID。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("template_id")]
+        [System.Text.Json.Serialization.JsonPropertyName("template_id")]
+        public int TemplateId { get; set; }
+    }
+}
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Merchant/Express/MerchantExpressGetByIdResponse.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Merchant/Express/MerchantExpressGetByIdResponse.cs
new file mode 100644
index 00000000..d8089450
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Merchant/Express/MerchantExpressGetByIdResponse.cs
@@ -0,0 +1,94 @@
+using System;
+using System.Collections.Generic;
+
+namespace SKIT.FlurlHttpClient.Wechat.Api.Models
+{
+    /// <summary>
+    /// <para>表示 [POST] /merchant/express/getbyid 接口的响应。</para>
+    /// </summary>
+    public class MerchantExpressGetByIdResponse : WechatApiResponse
+    {
+        public static class Types
+        {
+            public class Template
+            {
+                public static class Types
+                {
+                    public class Charging
+                    {
+                        /// <summary>
+                        /// 获取或设置快递类型。
+                        /// </summary>
+                        [Newtonsoft.Json.JsonProperty("Type")]
+                        [System.Text.Json.Serialization.JsonPropertyName("Type")]
+                        public int Type { get; set; }
+
+                        /// <summary>
+                        /// 获取或设置默认邮费计算方法。
+                        /// </summary>
+                        [Newtonsoft.Json.JsonProperty("Normal")]
+                        [System.Text.Json.Serialization.JsonPropertyName("Normal")]
+                        public NormalCharging Normal { get; set; } = default!;
+
+                        /// <summary>
+                        /// 获取或设置指定地区邮费计算方法。
+                        /// </summary>
+                        [Newtonsoft.Json.JsonProperty("Custom")]
+                        [System.Text.Json.Serialization.JsonPropertyName("Custom")]
+                        public CustomCharging[] CustomList { get; set; } = default!;
+                    }
+
+                    public class NormalCharging : MerchantExpressAddRequest.Types.Template.Types.NormalCharging
+                    {
+                    }
+
+                    public class CustomCharging : MerchantExpressAddRequest.Types.Template.Types.CustomCharging
+                    {
+                    }
+                }
+
+                /// <summary>
+                /// 获取或设置邮费模板 ID。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("Id")]
+                [System.Text.Json.Serialization.JsonPropertyName("Id")]
+                public int TemplateId { get; set; }
+
+                /// <summary>
+                /// 获取或设置模板名称。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("Name")]
+                [System.Text.Json.Serialization.JsonPropertyName("Name")]
+                public string Name { get; set; } = default!;
+
+                /// <summary>
+                /// 获取或设置支付方式。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("Assumer")]
+                [System.Text.Json.Serialization.JsonPropertyName("Assumer")]
+                public int Assumer { get; set; }
+
+                /// <summary>
+                /// 获取或设置计费方式。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("Valuation")]
+                [System.Text.Json.Serialization.JsonPropertyName("Valuation")]
+                public int Valuation { get; set; }
+
+                /// <summary>
+                /// 获取或设置运费计算列表。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("TopFee")]
+                [System.Text.Json.Serialization.JsonPropertyName("TopFee")]
+                public Types.Charging[] ChargingList { get; set; } = default!;
+            }
+        }
+
+        /// <summary>
+        /// 获取或设置邮费模板信息。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("template_info")]
+        [System.Text.Json.Serialization.JsonPropertyName("template_info")]
+        public Types.Template Template { get; set; } = default!;
+    }
+}
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Merchant/Express/MerchantExpressUpdateRequest.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Merchant/Express/MerchantExpressUpdateRequest.cs
new file mode 100644
index 00000000..1f4bf2bc
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Merchant/Express/MerchantExpressUpdateRequest.cs
@@ -0,0 +1,32 @@
+using System;
+using System.Collections.Generic;
+
+namespace SKIT.FlurlHttpClient.Wechat.Api.Models
+{
+    /// <summary>
+    /// <para>表示 [POST] /merchant/express/update 接口的请求。</para>
+    /// </summary>
+    public class MerchantExpressUpdateRequest : WechatApiRequest
+    {
+        public static class Types
+        {
+            public class Template : MerchantExpressAddRequest.Types.Template
+            {
+            }
+        }
+
+        /// <summary>
+        /// 获取或设置邮费模板 ID。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("template_id")]
+        [System.Text.Json.Serialization.JsonPropertyName("template_id")]
+        public int TemplateId { get; set; }
+
+        /// <summary>
+        /// 获取或设置邮费模板信息。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("delivery_template")]
+        [System.Text.Json.Serialization.JsonPropertyName("delivery_template")]
+        public Types.Template Template { get; set; } = new Types.Template();
+    }
+}
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Merchant/Express/MerchantExpressUpdateResponse.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Merchant/Express/MerchantExpressUpdateResponse.cs
new file mode 100644
index 00000000..9118e76b
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/Merchant/Express/MerchantExpressUpdateResponse.cs
@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+
+namespace SKIT.FlurlHttpClient.Wechat.Api.Models
+{
+    /// <summary>
+    /// <para>表示 [POST] /merchant/express/update 接口的响应。</para>
+    /// </summary>
+    public class MerchantExpressUpdateResponse : WechatApiResponse
+    {
+    }
+}