diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Extensions/WechatApiClientExecuteWxaBusinessExtensions.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Extensions/WechatApiClientExecuteWxaBusinessExtensions.cs
index 46bc33fd..c7b52c10 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Api/Extensions/WechatApiClientExecuteWxaBusinessExtensions.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/Extensions/WechatApiClientExecuteWxaBusinessExtensions.cs
@@ -263,7 +263,7 @@ namespace SKIT.FlurlHttpClient.Wechat.Api
         #region Runtime
         /// <summary>
         /// <para>异步调用 [POST] /wxa/business/runtime/adddevice 接口。</para>
-        /// <para>REF: https://developers.weixin.qq.com/doc/oplatform/Miniprogram_Frame/deviceId.html </para>
+        /// <para>REF: https://developers.weixin.qq.com/doc/oplatform/Miniprogram_Frame/api/backend/addDevice.html </para>
         /// </summary>
         /// <param name="client"></param>
         /// <param name="request"></param>
@@ -280,6 +280,26 @@ namespace SKIT.FlurlHttpClient.Wechat.Api
 
             return await client.SendRequestWithJsonAsync<Models.WxaBusinessRuntimeAddDeviceResponse>(flurlReq, data: request, cancellationToken: cancellationToken);
         }
+
+        /// <summary>
+        /// <para>异步调用 [POST] /wxa/business/runtime/pushappmsg 接口。</para>
+        /// <para>REF: https://developers.weixin.qq.com/doc/oplatform/Miniprogram_Frame/api/backend/pushAppMsg.html </para>
+        /// </summary>
+        /// <param name="client"></param>
+        /// <param name="request"></param>
+        /// <param name="cancellationToken"></param>
+        /// <returns></returns>
+        public static async Task<Models.WxaBusinessRuntimePushAppMessageResponse> ExecuteWxaBusinessRuntimePushAppMessageAsync(this WechatApiClient client, Models.WxaBusinessRuntimePushAppMessageRequest 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, "wxa", "business", "runtime", "pushappmsg")
+                .SetQueryParam("access_token", request.AccessToken);
+
+            return await client.SendRequestWithJsonAsync<Models.WxaBusinessRuntimePushAppMessageResponse>(flurlReq, data: request, cancellationToken: cancellationToken);
+        }
         #endregion
 
         #region Internet
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/IInferable.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/IInferable.cs
similarity index 100%
rename from src/SKIT.FlurlHttpClient.Wechat.Api/Models/IInferable.cs
rename to src/SKIT.FlurlHttpClient.Wechat.Api/IInferable.cs
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/WxaBusiness/Runtime/WxaBusinessRuntimePushAppMessageRequest.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/WxaBusiness/Runtime/WxaBusinessRuntimePushAppMessageRequest.cs
new file mode 100644
index 00000000..7c297bce
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/WxaBusiness/Runtime/WxaBusinessRuntimePushAppMessageRequest.cs
@@ -0,0 +1,24 @@
+using System.Collections.Generic;
+
+namespace SKIT.FlurlHttpClient.Wechat.Api.Models
+{
+    /// <summary>
+    /// <para>表示 [POST] /wxa/business/runtime/pushappmsg 接口的请求。</para>
+    /// </summary>
+    public class WxaBusinessRuntimePushAppMessageRequest : WechatApiRequest, IInferable<WxaBusinessRuntimePushAppMessageRequest, WxaBusinessRuntimeAddDeviceResponse>
+    {
+        /// <summary>
+        /// 获取或设置消息内容。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("msg")]
+        [System.Text.Json.Serialization.JsonPropertyName("msg")]
+        public string Message { get; set; } = string.Empty;
+
+        /// <summary>
+        /// 获取或设置产品中文名称。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("push_token")]
+        [System.Text.Json.Serialization.JsonPropertyName("push_token")]
+        public string PushToken { get; set; } = string.Empty;
+    }
+}
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/WxaBusiness/Runtime/WxaBusinessRuntimePushAppMessageResponse.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/WxaBusiness/Runtime/WxaBusinessRuntimePushAppMessageResponse.cs
new file mode 100644
index 00000000..eb906f5b
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/WxaBusiness/Runtime/WxaBusinessRuntimePushAppMessageResponse.cs
@@ -0,0 +1,9 @@
+namespace SKIT.FlurlHttpClient.Wechat.Api.Models
+{
+    /// <summary>
+    /// <para>表示 [POST] /wxa/business/runtime/pushappmsg 接口的响应。</para>
+    /// </summary>
+    public class WxaBusinessRuntimePushAppMessageResponse : WechatApiResponse
+    {
+    }
+}
diff --git a/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/WxaBusiness/Runtime/WxaBusinessRuntimePushAppMessageRequest.json b/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/WxaBusiness/Runtime/WxaBusinessRuntimePushAppMessageRequest.json
new file mode 100644
index 00000000..6902e463
--- /dev/null
+++ b/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/WxaBusiness/Runtime/WxaBusinessRuntimePushAppMessageRequest.json
@@ -0,0 +1,4 @@
+{
+    "msg": "your msg",
+    "push_token": "your push token"
+}