diff --git a/docs/TikTokGlobal/Basic_ModelDefinition.md b/docs/TikTokGlobal/Basic_ModelDefinition.md
index 90985fa8..7a94e19e 100644
--- a/docs/TikTokGlobal/Basic_ModelDefinition.md
+++ b/docs/TikTokGlobal/Basic_ModelDefinition.md
@@ -50,6 +50,7 @@ Naming Policies:
     -   Query User Followers: `ResearchUserFollowers`
     -   Query User Following: `ResearchUserFollowing`
     -   Query User Reposted Videos: `ResearchUserRepostedVideos`
+    -   Query Playlists: `ResearchPlaylistInfo`
 -   Commercial Content
     -   Query Ads: `ResearchAdlibAdQuery`
     -   Query Advertisers: `ResearchAdlibAdvertiserQuery`
diff --git a/src/SKIT.FlurlHttpClient.ByteDance.TikTokGlobal/Extensions/TikTokV2ClientExecuteResearchExtensions.cs b/src/SKIT.FlurlHttpClient.ByteDance.TikTokGlobal/Extensions/TikTokV2ClientExecuteResearchExtensions.cs
index c6f66bb5..edd0a552 100644
--- a/src/SKIT.FlurlHttpClient.ByteDance.TikTokGlobal/Extensions/TikTokV2ClientExecuteResearchExtensions.cs
+++ b/src/SKIT.FlurlHttpClient.ByteDance.TikTokGlobal/Extensions/TikTokV2ClientExecuteResearchExtensions.cs
@@ -125,6 +125,30 @@ public static class TikTokV2ClientExecuteResearchExtensions
         }
         #endregion
 
+        #region Playlist
+        /// <summary>
+        /// <para>异步调用 [POST] /research/playlist/info/ 接口。</para>
+        /// <para>
+        /// REF: <br/>
+        /// <![CDATA[ https://developers.tiktok.com/doc/research-api-specs-query-playlist-info ]]>
+        /// </para>
+        /// </summary>
+        /// <param name="client"></param>
+        /// <param name="request"></param>
+        /// <param name="cancellationToken"></param>
+        /// <returns></returns>
+        public static async Task<Models.ResearchPlaylistInfoResponse> ExecuteResearchPlaylistInfoAsync(this TikTokV2Client client, Models.ResearchPlaylistInfoRequest 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
+                .CreateFlurlRequest(request, HttpMethod.Post, "research", "playlist", "info/");
+
+            return await client.SendFlurlRequestAsJsonAsync<Models.ResearchPlaylistInfoResponse>(flurlReq, data: request, cancellationToken: cancellationToken).ConfigureAwait(false);
+        }
+        #endregion
+
         #region User
         /// <summary>
         /// <para>异步调用 [POST] /research/user/info/ 接口。</para>
diff --git a/src/SKIT.FlurlHttpClient.ByteDance.TikTokGlobal/Models/Research/Playlist/ResearchPlaylistInfoRequest.cs b/src/SKIT.FlurlHttpClient.ByteDance.TikTokGlobal/Models/Research/Playlist/ResearchPlaylistInfoRequest.cs
new file mode 100644
index 00000000..93c85be9
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.ByteDance.TikTokGlobal/Models/Research/Playlist/ResearchPlaylistInfoRequest.cs
@@ -0,0 +1,22 @@
+namespace SKIT.FlurlHttpClient.ByteDance.TikTokGlobal.Models
+{
+    /// <summary>
+    /// <para>表示 [POST] /research/playlist/info/ 接口的请求。</para>
+    /// </summary>
+    public class ResearchPlaylistInfoRequest : TikTokV2Request
+    {
+        /// <summary>
+        /// 获取或设置播放列表 ID。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("playlist_id")]
+        [System.Text.Json.Serialization.JsonPropertyName("playlist_id")]
+        public long PlaylistId { get; set; }
+
+        /// <summary>
+        /// 获取或设置分页游标。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("cursor")]
+        [System.Text.Json.Serialization.JsonPropertyName("cursor")]
+        public long? PageCursor { get; set; }
+    }
+}
diff --git a/src/SKIT.FlurlHttpClient.ByteDance.TikTokGlobal/Models/Research/Playlist/ResearchPlaylistInfoResponse.cs b/src/SKIT.FlurlHttpClient.ByteDance.TikTokGlobal/Models/Research/Playlist/ResearchPlaylistInfoResponse.cs
new file mode 100644
index 00000000..c60b508c
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.ByteDance.TikTokGlobal/Models/Research/Playlist/ResearchPlaylistInfoResponse.cs
@@ -0,0 +1,49 @@
+namespace SKIT.FlurlHttpClient.ByteDance.TikTokGlobal.Models
+{
+    /// <summary>
+    /// <para>表示 [POST] /research/playlist/info/ 接口的响应。</para>
+    /// </summary>
+    public class ResearchPlaylistInfoResponse : TikTokV2Response<ResearchPlaylistInfoResponse.Types.Data>
+    {
+        public static class Types
+        {
+            public class Data
+            {
+                /// <summary>
+                /// 获取或设置播放列表 ID。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("playlist_id")]
+                [System.Text.Json.Serialization.JsonPropertyName("playlist_id")]
+                public long PlaylistId { get; set; }
+
+                /// <summary>
+                /// 获取或设置播放列表名称。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("playlist_name")]
+                [System.Text.Json.Serialization.JsonPropertyName("playlist_name")]
+                public string PlaylistName { get; set; } = default!;
+
+                /// <summary>
+                /// 获取或设置视频总数。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("playlist_item_total")]
+                [System.Text.Json.Serialization.JsonPropertyName("playlist_item_total")]
+                public int TotalItemCount { get; set; }
+
+                /// <summary>
+                /// 获取或设置最后更新时间。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("playlist_last_updated")]
+                [System.Text.Json.Serialization.JsonPropertyName("playlist_last_updated")]
+                public long UpdateTimestamp { get; set; }
+
+                /// <summary>
+                /// 获取或设置视频 ID 列表。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("playlist_video_ids")]
+                [System.Text.Json.Serialization.JsonPropertyName("playlist_video_ids")]
+                public long[]? VideoIdList { get; set; }
+            }
+        }
+    }
+}
diff --git a/test/SKIT.FlurlHttpClient.ByteDance.TikTokGlobal.UnitTests/ModelSamples/Research/Playlist/ResearchPlaylistInfoRequest.json b/test/SKIT.FlurlHttpClient.ByteDance.TikTokGlobal.UnitTests/ModelSamples/Research/Playlist/ResearchPlaylistInfoRequest.json
new file mode 100644
index 00000000..1616f7f5
--- /dev/null
+++ b/test/SKIT.FlurlHttpClient.ByteDance.TikTokGlobal.UnitTests/ModelSamples/Research/Playlist/ResearchPlaylistInfoRequest.json
@@ -0,0 +1,3 @@
+{
+    "playlist_id": 1234534763387255595
+}
diff --git a/test/SKIT.FlurlHttpClient.ByteDance.TikTokGlobal.UnitTests/ModelSamples/Research/Playlist/ResearchPlaylistInfoResponse.json b/test/SKIT.FlurlHttpClient.ByteDance.TikTokGlobal.UnitTests/ModelSamples/Research/Playlist/ResearchPlaylistInfoResponse.json
new file mode 100644
index 00000000..697b7f3e
--- /dev/null
+++ b/test/SKIT.FlurlHttpClient.ByteDance.TikTokGlobal.UnitTests/ModelSamples/Research/Playlist/ResearchPlaylistInfoResponse.json
@@ -0,0 +1,23 @@
+{
+    "data": {
+        "playlist_id": 1234579763387255595,
+        "playlist_item_total": 4,
+        "playlist_last_updated": 1663620215,
+        "playlist_name": "Test playlist name",
+        "playlist_video_ids": [
+            12351810646859,
+            7289561123404511,
+            7274412345315375,
+            12312311231231231,
+            12312883434352176,
+            71919242345289237,
+            7190923438988788,
+            71800659413240905
+        ]
+    },
+    "error": {
+        "code": "ok",
+        "message": "ok",
+        "log_id": "20240700200656033B747EC0C8DE33C94C"
+    }
+}