diff --git a/src/SKIT.FlurlHttpClient.Wechat.Ads/Extensions/WechatAdsClientExecuteAdvertiserExtensions.cs b/src/SKIT.FlurlHttpClient.Wechat.Ads/Extensions/WechatAdsClientExecuteAdvertiserExtensions.cs
new file mode 100644
index 00000000..f8f2705c
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.Wechat.Ads/Extensions/WechatAdsClientExecuteAdvertiserExtensions.cs
@@ -0,0 +1,74 @@
+using System;
+using System.Collections.Generic;
+using System.Net.Http;
+using System.Text;
+using System.Threading;
+using System.Threading.Tasks;
+using Flurl;
+using Flurl.Http;
+
+namespace SKIT.FlurlHttpClient.Wechat.Ads
+{
+    public static class WechatAdsClientExecuteAdvertiserExtensions
+    {
+        /// <summary>
+        /// <para>异步调用 [POST] /advertiser/add 接口。</para>
+        /// </summary>
+        /// <param name="client"></param>
+        /// <param name="request"></param>
+        /// <param name="cancellationToken"></param>
+        /// <returns></returns>
+        public static async Task<Models.AdvertiserAddResponse> ExecuteAdvertiserAddAsync(this WechatAdsClient client, Models.AdvertiserAddRequest 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(HttpMethod.Post, "advertiser", "add")
+                .SetOptions(request)
+                .SetQueryParam("access_token", request.AccessToken);
+
+            return await client.SendRequestWithJsonAsync<Models.AdvertiserAddResponse>(flurlReq, data: request, cancellationToken: cancellationToken);
+        }
+
+        /// <summary>
+        /// <para>异步调用 [POST] /advertiser/update 接口。</para>
+        /// </summary>
+        /// <param name="client"></param>
+        /// <param name="request"></param>
+        /// <param name="cancellationToken"></param>
+        /// <returns></returns>
+        public static async Task<Models.AdvertiserUpdateResponse> ExecuteAdvertiserUpdateAsync(this WechatAdsClient client, Models.AdvertiserUpdateRequest 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(HttpMethod.Post, "advertiser", "update")
+                .SetOptions(request)
+                .SetQueryParam("access_token", request.AccessToken);
+
+            return await client.SendRequestWithJsonAsync<Models.AdvertiserUpdateResponse>(flurlReq, data: request, cancellationToken: cancellationToken);
+        }
+
+        /// <summary>
+        /// <para>异步调用 [GET] /advertiser/get 接口。</para>
+        /// </summary>
+        /// <param name="client"></param>
+        /// <param name="request"></param>
+        /// <param name="cancellationToken"></param>
+        /// <returns></returns>
+        public static async Task<Models.AdvertiserGetResponse> ExecuteAdvertiserGetAsync(this WechatAdsClient client, Models.AdvertiserGetRequest 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(HttpMethod.Get, "advertiser", "get")
+                .SetOptions(request)
+                .SetQueryParam("access_token", request.AccessToken);
+
+            return await client.SendRequestAsync<Models.AdvertiserGetResponse>(flurlReq, cancellationToken: cancellationToken);
+        }
+    }
+}
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Ads/Models/Advertiser/AdvertiserAddRequest.cs b/src/SKIT.FlurlHttpClient.Wechat.Ads/Models/Advertiser/AdvertiserAddRequest.cs
new file mode 100644
index 00000000..a6d56954
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.Wechat.Ads/Models/Advertiser/AdvertiserAddRequest.cs
@@ -0,0 +1,46 @@
+using System;
+using System.Collections.Generic;
+
+namespace SKIT.FlurlHttpClient.Wechat.Ads.Models
+{
+    /// <summary>
+    /// <para>表示 [POST] /advertiser/add 接口的请求。</para>
+    /// </summary>
+    public class AdvertiserAddRequest : WechatAdsRequest
+    {
+        /// <summary>
+        /// 获取或设置行业 ID。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("system_industry_id")]
+        [System.Text.Json.Serialization.JsonPropertyName("system_industry_id")]
+        public int IndustryId { get; set; }
+
+        /// <summary>
+        /// 获取或设置联系人姓名。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("contact_person")]
+        [System.Text.Json.Serialization.JsonPropertyName("contact_person")]
+        public string ContactPerson { get; set; } = string.Empty;
+
+        /// <summary>
+        /// 获取或设置联系人电话号码。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("contact_person_telephone")]
+        [System.Text.Json.Serialization.JsonPropertyName("contact_person_telephone")]
+        public string ContactTeleNumber { get; set; } = string.Empty;
+
+        /// <summary>
+        /// 获取或设置经营性质类型。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("business_type")]
+        [System.Text.Json.Serialization.JsonPropertyName("business_type")]
+        public string? BusinessType { get; set; }
+
+        /// <summary>
+        /// 获取或设置经营内容。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("business_content")]
+        [System.Text.Json.Serialization.JsonPropertyName("business_content")]
+        public string? BusinessContent { get; set; }
+    }
+}
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Ads/Models/Advertiser/AdvertiserAddResponse.cs b/src/SKIT.FlurlHttpClient.Wechat.Ads/Models/Advertiser/AdvertiserAddResponse.cs
new file mode 100644
index 00000000..4235477c
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.Wechat.Ads/Models/Advertiser/AdvertiserAddResponse.cs
@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+
+namespace SKIT.FlurlHttpClient.Wechat.Ads.Models
+{
+    /// <summary>
+    /// <para>表示 [POST] /advertiser/add 接口的响应。</para>
+    /// </summary>
+    public class AdvertiserAddResponse : WechatAdsResponse
+    {
+    }
+}
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Ads/Models/Advertiser/AdvertiserGetRequest.cs b/src/SKIT.FlurlHttpClient.Wechat.Ads/Models/Advertiser/AdvertiserGetRequest.cs
new file mode 100644
index 00000000..a6f5f1c3
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.Wechat.Ads/Models/Advertiser/AdvertiserGetRequest.cs
@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+
+namespace SKIT.FlurlHttpClient.Wechat.Ads.Models
+{
+    /// <summary>
+    /// <para>表示 [GET] /advertiser/get 接口的请求。</para>
+    /// </summary>
+    public class AdvertiserGetRequest : WechatAdsRequest
+    {
+    }
+}
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Ads/Models/Advertiser/AdvertiserGetResponse.cs b/src/SKIT.FlurlHttpClient.Wechat.Ads/Models/Advertiser/AdvertiserGetResponse.cs
new file mode 100644
index 00000000..00d8f2d5
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.Wechat.Ads/Models/Advertiser/AdvertiserGetResponse.cs
@@ -0,0 +1,73 @@
+using System;
+using System.Collections.Generic;
+
+namespace SKIT.FlurlHttpClient.Wechat.Ads.Models
+{
+    /// <summary>
+    /// <para>表示 [GET] /advertiser/get 接口的响应。</para>
+    /// </summary>
+    public class AdvertiserGetResponse : WechatAdsResponse
+    {
+        public static class Types
+        {
+            public class Data
+            {
+                /// <summary>
+                /// 获取或设置公众号名称。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("wechat_account_name")]
+                [System.Text.Json.Serialization.JsonPropertyName("wechat_account_name")]
+                public string WechatAccountNickname { get; set; } = default!;
+
+                /// <summary>
+                /// 获取或设置系统状态。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("system_status")]
+                [System.Text.Json.Serialization.JsonPropertyName("system_status")]
+                public string SystemStatus { get; set; } = default!;
+
+                /// <summary>
+                /// 获取或设置行业 ID。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("industry_id")]
+                [System.Text.Json.Serialization.JsonPropertyName("industry_id")]
+                public int IndustryId { get; set; }
+
+                /// <summary>
+                /// 获取或设置联系人姓名。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("contact_person")]
+                [System.Text.Json.Serialization.JsonPropertyName("contact_person")]
+                public string ContactPerson { get; set; } = default!;
+
+                /// <summary>
+                /// 获取或设置联系人电话号码。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("contact_person_telephone")]
+                [System.Text.Json.Serialization.JsonPropertyName("contact_person_telephone")]
+                public string ContactTeleNumber { get; set; } = default!;
+
+                /// <summary>
+                /// 获取或设置经营性质类型。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("business_type")]
+                [System.Text.Json.Serialization.JsonPropertyName("business_type")]
+                public string? BusinessType { get; set; }
+
+                /// <summary>
+                /// 获取或设置经营内容。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("business_content")]
+                [System.Text.Json.Serialization.JsonPropertyName("business_content")]
+                public string? BusinessContent { get; set; }
+            }
+        }
+
+        /// <summary>
+        /// 获取或设置返回数据。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("data")]
+        [System.Text.Json.Serialization.JsonPropertyName("data")]
+        public Types.Data Data { get; set; } = default!;
+    }
+}
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Ads/Models/Advertiser/AdvertiserUpdateRequest.cs b/src/SKIT.FlurlHttpClient.Wechat.Ads/Models/Advertiser/AdvertiserUpdateRequest.cs
new file mode 100644
index 00000000..f9c981cb
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.Wechat.Ads/Models/Advertiser/AdvertiserUpdateRequest.cs
@@ -0,0 +1,46 @@
+using System;
+using System.Collections.Generic;
+
+namespace SKIT.FlurlHttpClient.Wechat.Ads.Models
+{
+    /// <summary>
+    /// <para>表示 [POST] /advertiser/update 接口的请求。</para>
+    /// </summary>
+    public class AdvertiserUpdateRequest : WechatAdsRequest
+    {
+        /// <summary>
+        /// 获取或设置行业 ID。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("system_industry_id")]
+        [System.Text.Json.Serialization.JsonPropertyName("system_industry_id")]
+        public int? IndustryId { get; set; }
+
+        /// <summary>
+        /// 获取或设置联系人姓名。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("contact_person")]
+        [System.Text.Json.Serialization.JsonPropertyName("contact_person")]
+        public string? ContactPerson { get; set; }
+
+        /// <summary>
+        /// 获取或设置联系人电话号码。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("contact_person_telephone")]
+        [System.Text.Json.Serialization.JsonPropertyName("contact_person_telephone")]
+        public string? ContactTeleNumber { get; set; }
+
+        /// <summary>
+        /// 获取或设置经营性质类型。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("business_type")]
+        [System.Text.Json.Serialization.JsonPropertyName("business_type")]
+        public string? BusinessType { get; set; }
+
+        /// <summary>
+        /// 获取或设置经营内容。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("business_content")]
+        [System.Text.Json.Serialization.JsonPropertyName("business_content")]
+        public string? BusinessContent { get; set; }
+    }
+}
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Ads/Models/Advertiser/AdvertiserUpdateResponse.cs b/src/SKIT.FlurlHttpClient.Wechat.Ads/Models/Advertiser/AdvertiserUpdateResponse.cs
new file mode 100644
index 00000000..77e750a1
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.Wechat.Ads/Models/Advertiser/AdvertiserUpdateResponse.cs
@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+
+namespace SKIT.FlurlHttpClient.Wechat.Ads.Models
+{
+    /// <summary>
+    /// <para>表示 [POST] /advertiser/update 接口的响应。</para>
+    /// </summary>
+    public class AdvertiserUpdateResponse : WechatAdsResponse
+    {
+    }
+}
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Ads/WechatAdsEndpoints.cs b/src/SKIT.FlurlHttpClient.Wechat.Ads/WechatAdsEndpoints.cs
index 380a8b99..92743284 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Ads/WechatAdsEndpoints.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Ads/WechatAdsEndpoints.cs
@@ -10,6 +10,6 @@ namespace SKIT.FlurlHttpClient.Wechat.Ads
         /// <summary>
         /// 主域名（默认）。
         /// </summary>
-        public const string DEFAULT = "https://api.weixin.qq.com";
+        public const string DEFAULT = "https://api.weixin.qq.com/marketing";
     }
 }
diff --git a/test/SKIT.FlurlHttpClient.Wechat.Ads.UnitTests/WechatAdsDeclarationTests.cs b/test/SKIT.FlurlHttpClient.Wechat.Ads.UnitTests/WechatAdsDeclarationTests.cs
new file mode 100644
index 00000000..ed6e0317
--- /dev/null
+++ b/test/SKIT.FlurlHttpClient.Wechat.Ads.UnitTests/WechatAdsDeclarationTests.cs
@@ -0,0 +1,66 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Reflection;
+using System.Threading;
+using System.Threading.Tasks;
+using Xunit;
+
+namespace SKIT.FlurlHttpClient.Wechat.Ads.UnitTests
+{
+    public class WechatAdsDeclarationTests
+    {
+        private static readonly Assembly _assembly = Assembly.Load("SKIT.FlurlHttpClient.Wechat.Ads");
+
+        [Fact(DisplayName = "验证 API 模型命名")]
+        public void ApiModelsNamingTest()
+        {
+            TestAssertUtil.VerifyApiModelsNaming(_assembly, out var ex);
+
+            if (ex != null)
+                throw ex;
+
+            Assert.Null(ex);
+        }
+
+        [Fact(DisplayName = "验证 API 模型定义")]
+        public void ApiModelsDefinitionTest()
+        {
+            string workdir = Path.Combine(TestConfigs.ProjectTestDirectory, "ModelSamples");
+            Assert.True(Directory.Exists(workdir));
+
+            TestAssertUtil.VerifyApiModelsDefinition(_assembly, workdir, out var ex);
+
+            if (ex != null)
+                throw ex;
+
+            Assert.Null(ex);
+        }
+
+        [Fact(DisplayName = "验证 API 接口命名")]
+        public void ApiExtensionsNamingTest()
+        {
+            TestAssertUtil.VerifyApiExtensionsNaming(_assembly, out var ex);
+
+            if (ex != null)
+                throw ex;
+
+            Assert.Null(ex);
+        }
+
+        [Fact(DisplayName = "验证代码规范")]
+        public void CodeStyleTest()
+        {
+            string workdir = Path.Combine(TestConfigs.ProjectSourceDirectory);
+            Assert.True(Directory.Exists(workdir));
+
+            TestAssertUtil.VerifySourceCodeStyle(workdir, out var ex);
+
+            if (ex != null)
+                throw ex;
+
+            Assert.Null(ex);
+        }
+    }
+}