diff --git a/src/SKIT.FlurlHttpClient.Wechat.OpenAI/Extensions/WechatOpenAIClientExecuteStatisticsExtensions.cs b/src/SKIT.FlurlHttpClient.Wechat.OpenAI/Extensions/WechatOpenAIClientExecuteStatisticsExtensions.cs
new file mode 100644
index 00000000..2d1d7bfe
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.Wechat.OpenAI/Extensions/WechatOpenAIClientExecuteStatisticsExtensions.cs
@@ -0,0 +1,52 @@
+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.OpenAI
+{
+    public static class WechatOpenAIClientExecuteStatisticsExtensions
+    {
+        /// <summary>
+        /// <para>异步调用 [POST] /v2/dialog_user_specified_date 接口。</para>
+        /// <para>REF: https://developers.weixin.qq.com/doc/aispeech/openapi/api/v2/statistic/dialog_user_specified_date.html </para>
+        /// </summary>
+        /// <param name="client"></param>
+        /// <param name="request"></param>
+        /// <param name="cancellationToken"></param>
+        /// <returns></returns>
+        public static async Task<Models.DialogUserSpecifiedDateResponse> ExecuteDialogUserSpecifiedDateAsync(this WechatOpenAIClient client, Models.DialogUserSpecifiedDateRequest 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, "v2", "dialog_user_specified_date");
+
+            return await client.SendRequestWithJsonAsync<Models.DialogUserSpecifiedDateResponse>(flurlReq, data: request, cancellationToken: cancellationToken);
+        }
+
+        /// <summary>
+        /// <para>异步调用 [POST] /v2/user_query_yesterday_data 接口。</para>
+        /// <para>REF: https://developers.weixin.qq.com/doc/aispeech/openapi/api/v2/statistic/user_query_yesterday_data.html </para>
+        /// </summary>
+        /// <param name="client"></param>
+        /// <param name="request"></param>
+        /// <param name="cancellationToken"></param>
+        /// <returns></returns>
+        public static async Task<Models.UserQueryYesterdayDataResponse> ExecuteUserQueryYesterdayDataAsync(this WechatOpenAIClient client, Models.UserQueryYesterdayDataRequest 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, "v2", "user_query_yesterday_data");
+
+            return await client.SendRequestWithJsonAsync<Models.UserQueryYesterdayDataResponse>(flurlReq, data: request, cancellationToken: cancellationToken);
+        }
+    }
+}
diff --git a/src/SKIT.FlurlHttpClient.Wechat.OpenAI/Models/Statistics/DialogUserSpecifiedDateRequest.cs b/src/SKIT.FlurlHttpClient.Wechat.OpenAI/Models/Statistics/DialogUserSpecifiedDateRequest.cs
new file mode 100644
index 00000000..f062043b
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.Wechat.OpenAI/Models/Statistics/DialogUserSpecifiedDateRequest.cs
@@ -0,0 +1,25 @@
+using System;
+using System.Collections.Generic;
+
+namespace SKIT.FlurlHttpClient.Wechat.OpenAI.Models
+{
+    /// <summary>
+    /// <para>表示 [POST] /v2/dialog_user_specified_date 接口的请求。</para>
+    /// </summary>
+    public class DialogUserSpecifiedDateRequest : WechatOpenAIRequest
+    {
+        /// <summary>
+        /// 获取或设置起始日期字符串（格式：yyyy-MM-dd）。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("start_date")]
+        [System.Text.Json.Serialization.JsonPropertyName("start_date")]
+        public string StartDateString { get; set; } = string.Empty;
+
+        /// <summary>
+        /// 获取或设置结束日期字符串（格式：yyyy-MM-dd）。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("end_date")]
+        [System.Text.Json.Serialization.JsonPropertyName("end_date")]
+        public string EndDateString { get; set; } = string.Empty;
+    }
+}
diff --git a/src/SKIT.FlurlHttpClient.Wechat.OpenAI/Models/Statistics/DialogUserSpecifiedDateResponse.cs b/src/SKIT.FlurlHttpClient.Wechat.OpenAI/Models/Statistics/DialogUserSpecifiedDateResponse.cs
new file mode 100644
index 00000000..211c62ef
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.Wechat.OpenAI/Models/Statistics/DialogUserSpecifiedDateResponse.cs
@@ -0,0 +1,45 @@
+using System;
+using System.Collections.Generic;
+
+namespace SKIT.FlurlHttpClient.Wechat.OpenAI.Models
+{
+    /// <summary>
+    /// <para>表示 [POST] /v2/dialog_user_specified_date 接口的响应。</para>
+    /// </summary>
+    public class DialogUserSpecifiedDateResponse : WechatOpenAIResponse
+    {
+        public static class Types
+        {
+            public class Data
+            {
+                /// <summary>
+                /// 获取或设置日期字符串（格式：yyyy-MM-dd）。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("date")]
+                [System.Text.Json.Serialization.JsonPropertyName("date")]
+                public string DateString { get; set; } = default!;
+
+                /// <summary>
+                /// 获取或设置数量。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("count")]
+                [System.Text.Json.Serialization.JsonPropertyName("count")]
+                public int Count { get; set; }
+            }
+        }
+
+        /// <summary>
+        /// 获取或设置对话数据列表。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("q_a_count")]
+        [System.Text.Json.Serialization.JsonPropertyName("q_a_count")]
+        public Types.Data[] DialogDataList { get; set; } = default!;
+
+        /// <summary>
+        /// 获取或设置用户数据列表。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("user_count")]
+        [System.Text.Json.Serialization.JsonPropertyName("user_count")]
+        public Types.Data[] UserDataList { get; set; } = default!;
+    }
+}
diff --git a/src/SKIT.FlurlHttpClient.Wechat.OpenAI/Models/Statistics/UserQueryYesterdayDataRequest.cs b/src/SKIT.FlurlHttpClient.Wechat.OpenAI/Models/Statistics/UserQueryYesterdayDataRequest.cs
new file mode 100644
index 00000000..11bd8265
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.Wechat.OpenAI/Models/Statistics/UserQueryYesterdayDataRequest.cs
@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+
+namespace SKIT.FlurlHttpClient.Wechat.OpenAI.Models
+{
+    /// <summary>
+    /// <para>表示 [POST] /v2/user_query_yesterday_data 接口的请求。</para>
+    /// </summary>
+    public class UserQueryYesterdayDataRequest : WechatOpenAIRequest
+    {
+    }
+}
diff --git a/src/SKIT.FlurlHttpClient.Wechat.OpenAI/Models/Statistics/UserQueryYesterdayDataResponse.cs b/src/SKIT.FlurlHttpClient.Wechat.OpenAI/Models/Statistics/UserQueryYesterdayDataResponse.cs
new file mode 100644
index 00000000..be8396a7
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.Wechat.OpenAI/Models/Statistics/UserQueryYesterdayDataResponse.cs
@@ -0,0 +1,74 @@
+using System;
+using System.Collections.Generic;
+
+namespace SKIT.FlurlHttpClient.Wechat.OpenAI.Models
+{
+    /// <summary>
+    /// <para>表示 [POST] /v2/user_query_yesterday_data 接口的响应。</para>
+    /// </summary>
+    public class UserQueryYesterdayDataResponse : WechatOpenAIResponse
+    {
+        /// <summary>
+        /// 获取或设置对话数量。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("q_a_count")]
+        [System.Text.Json.Serialization.JsonPropertyName("q_a_count")]
+        public int DialogCount { get; set; }
+
+        /// <summary>
+        /// 获取或设置用户数量。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("user_count")]
+        [System.Text.Json.Serialization.JsonPropertyName("user_count")]
+        public int UserCount { get; set; }
+
+        /// <summary>
+        /// 获取或设置新消息总数。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("new_news_count")]
+        [System.Text.Json.Serialization.JsonPropertyName("new_news_count")]
+        public int NewMessageCount { get; set; }
+
+        /// <summary>
+        /// 获取或设置新消息人数。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("new_news_user_count")]
+        [System.Text.Json.Serialization.JsonPropertyName("new_news_user_count")]
+        public int NewMessageUserCount { get; set; }
+
+        /// <summary>
+        /// 获取或设置热问列表。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("hot_query_list")]
+        [System.Text.Json.Serialization.JsonPropertyName("hot_query_list")]
+        public string[] HotQueryList { get; set; } = default!;
+
+        /// <summary>
+        /// 获取或设置命中率（范围：0～1）。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("hit_rate")]
+        [System.Text.Json.Serialization.JsonPropertyName("hit_rate")]
+        public double HitRate { get; set; }
+
+        /// <summary>
+        /// 获取或设置错误率（范围：0～1）。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("miss_rate")]
+        [System.Text.Json.Serialization.JsonPropertyName("miss_rate")]
+        public double MissRate { get; set; }
+
+        /// <summary>
+        /// 获取或设置用户增长率（范围：0～1）。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("user_growth_rate")]
+        [System.Text.Json.Serialization.JsonPropertyName("user_growth_rate")]
+        public double UserGrowthRate { get; set; }
+
+        /// <summary>
+        /// 获取或设置命中增长率（范围：0～1）。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("hit_growth_rate")]
+        [System.Text.Json.Serialization.JsonPropertyName("hit_growth_rate")]
+        public double HitGrowthRate { get; set; }
+    }
+}
diff --git a/test/SKIT.FlurlHttpClient.Wechat.OpenAI.UnitTests/ModelSamples/Statistics/DialogUserSpecifiedDateRequest.json b/test/SKIT.FlurlHttpClient.Wechat.OpenAI.UnitTests/ModelSamples/Statistics/DialogUserSpecifiedDateRequest.json
new file mode 100644
index 00000000..6ebf35f6
--- /dev/null
+++ b/test/SKIT.FlurlHttpClient.Wechat.OpenAI.UnitTests/ModelSamples/Statistics/DialogUserSpecifiedDateRequest.json
@@ -0,0 +1,4 @@
+{
+    "start_date": "2021-08-11",
+    "end_date": "2021-08-18"
+}
\ No newline at end of file
diff --git a/test/SKIT.FlurlHttpClient.Wechat.OpenAI.UnitTests/ModelSamples/Statistics/DialogUserSpecifiedDateResponse.json b/test/SKIT.FlurlHttpClient.Wechat.OpenAI.UnitTests/ModelSamples/Statistics/DialogUserSpecifiedDateResponse.json
new file mode 100644
index 00000000..5d58ac5e
--- /dev/null
+++ b/test/SKIT.FlurlHttpClient.Wechat.OpenAI.UnitTests/ModelSamples/Statistics/DialogUserSpecifiedDateResponse.json
@@ -0,0 +1,21 @@
+{
+    "code": 0,
+    "msg": "请求成功",
+    "request_id": "255i0ug8-l9q4-3801-44ft-w7csjn9e5142",
+    "q_a_count": [
+        {
+            "date": "2021-08-11",
+            "count": 911
+        },
+        {
+            "date": "2021-08-12",
+            "count": 1316
+        }
+    ],
+    "user_count": [
+        {
+            "date": "2021-08-11",
+            "count": 267
+        }
+    ]
+}
\ No newline at end of file
diff --git a/test/SKIT.FlurlHttpClient.Wechat.OpenAI.UnitTests/ModelSamples/Statistics/UserQueryYesterdayDataRequest.json b/test/SKIT.FlurlHttpClient.Wechat.OpenAI.UnitTests/ModelSamples/Statistics/UserQueryYesterdayDataRequest.json
new file mode 100644
index 00000000..22fdca1b
--- /dev/null
+++ b/test/SKIT.FlurlHttpClient.Wechat.OpenAI.UnitTests/ModelSamples/Statistics/UserQueryYesterdayDataRequest.json
@@ -0,0 +1 @@
+{}
\ No newline at end of file
diff --git a/test/SKIT.FlurlHttpClient.Wechat.OpenAI.UnitTests/ModelSamples/Statistics/UserQueryYesterdayDataResponse.json b/test/SKIT.FlurlHttpClient.Wechat.OpenAI.UnitTests/ModelSamples/Statistics/UserQueryYesterdayDataResponse.json
new file mode 100644
index 00000000..cc6a7f73
--- /dev/null
+++ b/test/SKIT.FlurlHttpClient.Wechat.OpenAI.UnitTests/ModelSamples/Statistics/UserQueryYesterdayDataResponse.json
@@ -0,0 +1,14 @@
+{
+    "code": 0,
+    "msg": "请求成功",
+    "request_id": "255i0ug8-l9q4-3801-44ft-w7csjn9e5140",
+    "hit_rate": 0.94,
+    "q_a_count": 985,
+    "user_count": 280,
+    "hot_query_list": [ "我想看新闻", "好听的歌", "我想知道今天天气" ],
+    "miss_rate": 0.06000000000000005,
+    "new_news_count": 2021,
+    "new_news_user_count": 605,
+    "user_growth_rate": 0.16,
+    "hit_growth_rate": 0.02
+}
\ No newline at end of file