diff --git a/.changeset/strong-coins-walk.md b/.changeset/strong-coins-walk.md
new file mode 100644
index 00000000..df702daa
--- /dev/null
+++ b/.changeset/strong-coins-walk.md
@@ -0,0 +1,5 @@
+---
+'@webav/av-cliper': patch
+---
+
+refactor: change the split method of the IClip interface to be optional #324
diff --git a/doc-site/docs/demo/2_6_1-custom-clip.tsx b/doc-site/docs/demo/2_6_1-custom-clip.tsx
index bde9c81c..e074def1 100644
--- a/doc-site/docs/demo/2_6_1-custom-clip.tsx
+++ b/doc-site/docs/demo/2_6_1-custom-clip.tsx
@@ -12,6 +12,14 @@ class CountdownClip implements IClip {
 
   ready;
 
+  get meta() {
+    return {
+      width: this.#cvsEl.width,
+      height: this.#cvsEl.height,
+      duration: this.#duration * 1e6,
+    };
+  }
+
   constructor(duration: number) {
     this.#duration = duration;
     this.#cvsEl = document.createElement('canvas');
@@ -55,8 +63,8 @@ class CountdownClip implements IClip {
     };
   }
 
-  clone() {
-    return new CountdownClip(this.#duration);
+  async clone() {
+    return new CountdownClip(this.#duration) as this;
   }
 
   destroy() {
diff --git a/packages/av-cliper/src/clips/embed-subtitles-clip.ts b/packages/av-cliper/src/clips/embed-subtitles-clip.ts
index ef2a7595..ddda64f4 100644
--- a/packages/av-cliper/src/clips/embed-subtitles-clip.ts
+++ b/packages/av-cliper/src/clips/embed-subtitles-clip.ts
@@ -252,7 +252,7 @@ export class EmbedSubtitlesClip implements IClip {
   }
 
   /**
-   * @see {@link IClip.destroy}
+   * @see {@link IClip.split}
    */
   async split(time: number) {
     await this.ready;
diff --git a/packages/av-cliper/src/clips/iclip.ts b/packages/av-cliper/src/clips/iclip.ts
index 30b6c066..2c82e880 100644
--- a/packages/av-cliper/src/clips/iclip.ts
+++ b/packages/av-cliper/src/clips/iclip.ts
@@ -42,14 +42,14 @@ export interface IClip {
   clone: () => Promise<this>;
 
   /**
-   * 按指定时间切割，返回该时刻前后两个新素材
+   * 按指定时间切割，返回该时刻前后两个新素材，常用于剪辑场景按时间分割素材
    *
    * 该方法不会破坏原素材的数据
    *
    * @param time 时间，微秒
    * @returns
    */
-  split: (time: number) => Promise<[this, this]>;
+  split?: (time: number) => Promise<[this, this]>;
 
   /**
    * 销毁实例，释放资源