diff --git a/Jellyfin.Plugin.Danmu.Test/ToAssTest.cs b/Jellyfin.Plugin.Danmu.Test/ToAssTest.cs
index 17f24e2..d354f56 100644
--- a/Jellyfin.Plugin.Danmu.Test/ToAssTest.cs
+++ b/Jellyfin.Plugin.Danmu.Test/ToAssTest.cs
@@ -15,7 +15,8 @@ namespace Jellyfin.Plugin.Danmu.Test
         {
             var xml = @"<?xml version=""1.0"" encoding=""UTF-8""?><i><chatserver>chat.bilibili.com</chatserver><chatid>13113033</chatid><mission>0</mission><maxlimit>3000</maxlimit><state>0</state><real_name>0</real_name><source>k-v</source>
                 <d p=""253.09700,1,30,16777215,1665229999,0,e890f28,1158792239837718272,11"">杨笑汝有受到羽海野千花影响啦</d>
-                <d p=""225.85500,1,25,16777215,1665229198,0,e890f28,1158785518893433856,11"">风间笑死我了</d>
+                <d p=""225.85500,1,25,16777215,1665229198,0,e890f28,1158785518893433856,11"">风间🎉笑死我了</d>
+                <d p=""225.85500,1,25,16777215,1665229198,0,e890f28,1158785518893433856,11"">🥳🥳😂</d>
                 <d p=""213.22500,1,25,16777215,1665229172,0,e890f28,1158785301788090624,11"">有搬运车的</d>
                 <d p=""253.71600,1,25,16777215,1663566786,0,4cd9e142,1144840193279505664,11"">杨笑汝最喜欢的就是野海羽千花！</d>
                 <d p=""634.75000,1,25,16777215,1663517171,0,43c9cec0,1144424000059966464,11"">给女儿买衣服哈哈哈哈哈</d>
@@ -24,6 +25,7 @@ namespace Jellyfin.Plugin.Danmu.Test
                 <d p=""55.38000,1,25,16777215,1660413677,0,9c28a5a9,1118390004910248704,11"">这个op看得我好迷茫</d></i>
             ";
 
+            Danmaku2Ass.Bilibili.GetInstance().SetCustomFilter(true);
             var ass = Danmaku2Ass.Bilibili.GetInstance().ToASS(Encoding.UTF8.GetBytes(xml), new Config());
             Console.WriteLine(ass);
             Assert.IsNotNull(ass);
diff --git a/Jellyfin.Plugin.Danmu/Configuration/PluginConfiguration.cs b/Jellyfin.Plugin.Danmu/Configuration/PluginConfiguration.cs
index 69e74ab..bf18a28 100644
--- a/Jellyfin.Plugin.Danmu/Configuration/PluginConfiguration.cs
+++ b/Jellyfin.Plugin.Danmu/Configuration/PluginConfiguration.cs
@@ -42,6 +42,11 @@ public class PluginConfiguration : BasePluginConfiguration
     /// </summary>
     public string AssSpeed { get; set; } = string.Empty;
 
+    /// <summary>
+    /// 删除 emoji 表情。
+    /// </summary>
+    public bool AssRemoveEmoji { get; set; } = true;
+
 
     /// <summary>
     /// 检测弹幕数和视频剧集数需要一致才自动下载弹幕.
diff --git a/Jellyfin.Plugin.Danmu/Core/Danmaku2Ass/Bilibili.cs b/Jellyfin.Plugin.Danmu/Core/Danmaku2Ass/Bilibili.cs
index fbfe8e6..e702ac3 100644
--- a/Jellyfin.Plugin.Danmu/Core/Danmaku2Ass/Bilibili.cs
+++ b/Jellyfin.Plugin.Danmu/Core/Danmaku2Ass/Bilibili.cs
@@ -15,7 +15,8 @@ namespace Danmaku2Ass
         {
             { "top_filter", false },
             { "bottom_filter", false },
-            { "scroll_filter", false }
+            { "scroll_filter", false },
+            { "custom_filter", false }
         };
 
         private readonly Dictionary<int, string> mapping = new Dictionary<int, string>
@@ -93,6 +94,17 @@ namespace Danmaku2Ass
             return this;
         }
 
+        /// <summary>
+        /// 是否启用自定义过滤处理
+        /// </summary>
+        /// <param name="isFilter"></param>
+        /// <returns></returns>
+        public Bilibili SetCustomFilter(bool isFilter)
+        {
+            config["custom_filter"] = isFilter;
+            return this;
+        }
+
         public void Create(long avid, long cid, Config subtitleConfig, string assFile)
         {
             //// 弹幕转换
diff --git a/Jellyfin.Plugin.Danmu/Core/Danmaku2Ass/Filter.cs b/Jellyfin.Plugin.Danmu/Core/Danmaku2Ass/Filter.cs
index 85c0771..392ef07 100644
--- a/Jellyfin.Plugin.Danmu/Core/Danmaku2Ass/Filter.cs
+++ b/Jellyfin.Plugin.Danmu/Core/Danmaku2Ass/Filter.cs
@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Text.RegularExpressions;
 
 namespace Danmaku2Ass
 {
@@ -79,10 +80,21 @@ namespace Danmaku2Ass
     /// </summary>
     public class CustomFilter : Filter
     {
+        private Regex regEmoj = new Regex(@"(\u00a9|\u00ae|[\u2000-\u3300]|\ud83c[\ud000-\udfff]|\ud83d[\ud000-\udfff]|\ud83e[\ud000-\udfff])", RegexOptions.Compiled);
         public override List<Danmaku> DoFilter(List<Danmaku> danmakus)
-        {
-            // TODO
-            return base.DoFilter(danmakus);
+        {   
+            // 过滤 emoji 和非法字符
+            List<Danmaku> keep = new List<Danmaku>();
+            foreach (var danmaku in danmakus)
+            {
+                danmaku.Content = this.regEmoj.Replace(danmaku.Content, string.Empty).Trim();
+                if (string.IsNullOrWhiteSpace(danmaku.Content))
+                {
+                    continue;
+                }
+                keep.Add(danmaku);
+            }
+            return keep;
         }
     }
 }
diff --git a/Jellyfin.Plugin.Danmu/Core/Danmaku2Ass/Producer.cs b/Jellyfin.Plugin.Danmu/Core/Danmaku2Ass/Producer.cs
index 0cfa506..7fec597 100644
--- a/Jellyfin.Plugin.Danmu/Core/Danmaku2Ass/Producer.cs
+++ b/Jellyfin.Plugin.Danmu/Core/Danmaku2Ass/Producer.cs
@@ -39,10 +39,10 @@ namespace Danmaku2Ass
             {
                 Filters.Add("scroll_filter", new ScrollFilter());
             }
-            //if (Config["custom_filter"])
-            //{
-            //    Filters.Add("custom_filter", new CustomFilter());
-            //}
+            if (Config["custom_filter"])
+            {
+               Filters.Add("custom_filter", new CustomFilter());
+            }
 
         }
 
@@ -52,18 +52,17 @@ namespace Danmaku2Ass
                 { "top_filter", 0},
                 { "bottom_filter", 0},
                 { "scroll_filter", 0},
-                //{ "custom_filter",0}
+                { "custom_filter", 0}
             };
 
             List<Danmaku> danmakus = Danmakus;
-            //string[] orders = { "top_filter", "bottom_filter", "scroll_filter", "custom_filter" };
-            string[] orders = { "top_filter", "bottom_filter", "scroll_filter" };
+            string[] orders = { "top_filter", "bottom_filter", "scroll_filter", "custom_filter" };
             foreach (string name in orders)
             {
                 Filter filter;
-                if (!this.Filters.TryGetValue(name, out filter))
-                {
-                    continue;
+                if (!this.Filters.TryGetValue(name, out filter))
+                {
+                    continue;
                 }
 
                 int count = danmakus.Count;
diff --git a/Jellyfin.Plugin.Danmu/Core/Danmaku2Ass/Studio.cs b/Jellyfin.Plugin.Danmu/Core/Danmaku2Ass/Studio.cs
index b037bce..7d57734 100644
--- a/Jellyfin.Plugin.Danmu/Core/Danmaku2Ass/Studio.cs
+++ b/Jellyfin.Plugin.Danmu/Core/Danmaku2Ass/Studio.cs
@@ -2,6 +2,7 @@
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
+using System.Text;
 
 namespace Danmaku2Ass
 {
diff --git a/Jellyfin.Plugin.Danmu/LibraryManagerEventsHelper.cs b/Jellyfin.Plugin.Danmu/LibraryManagerEventsHelper.cs
index 4ca6d0e..469faf7 100644
--- a/Jellyfin.Plugin.Danmu/LibraryManagerEventsHelper.cs
+++ b/Jellyfin.Plugin.Danmu/LibraryManagerEventsHelper.cs
@@ -927,6 +927,10 @@ public class LibraryManagerEventsHelper : IDisposable
             {
                 assConfig.TuneDuration = this.Config.AssSpeed.Trim().ToInt() - 8;
             }
+            if (this.Config.AssRemoveEmoji)
+            {
+                Danmaku2Ass.Bilibili.GetInstance().SetCustomFilter(true);
+            }
 
             var assPath = Path.Combine(item.ContainingFolderPath, item.FileNameWithoutExtension + ".danmu.ass");
             Danmaku2Ass.Bilibili.GetInstance().Create(bytes, assConfig, assPath);