diff --git a/doco/src/doco/cli.py b/doco/src/doco/cli.py
index e1617a8..e39f840 100644
--- a/doco/src/doco/cli.py
+++ b/doco/src/doco/cli.py
@@ -38,11 +38,29 @@ def main():
     type=click.Path(),
     help="输出目录(work/ 路径)",
 )
+@click.option(
+    "--hash-algorithm",
+    default="dhash",
+    type=click.Choice(["dhash", "phash"]),
+    help="哈希算法:dhash(默认,对边缘敏感) 或 phash(感知哈希)",
+)
 @click.option(
     "--phash-threshold",
-    default=8,
+    default=2,
     type=int,
-    help="pHash 海明距离阈值,用于检测字幕变化(默认 8)",
+    help="pHash 海明距离阈值(默认 2)",
+)
+@click.option(
+    "--dhash-threshold",
+    default=5,
+    type=int,
+    help="dHash 海明距离阈值(默认 5)",
+)
+@click.option(
+    "--iou-threshold",
+    default=0.95,
+    type=float,
+    help="IoU 保底阈值:二值化帧间 IoU > 此值视为同字幕(默认 0.95)",
 )
 @click.option(
     "--dry-run",
@@ -54,13 +72,16 @@ def split(
     episode_id: str,
     input_video: str,
     output_dir: str,
+    hash_algorithm: str,
     phash_threshold: int,
+    dhash_threshold: int,
+    iou_threshold: float,
     dry_run: bool,
 ):
     """
     P1: 视频双路拆分
 
-    A 路:抽帧 + pHash 变化检测 + OCR → B 稿 txt
+    A 路:抽帧 + 空白帧过滤 + 哈希变化检测 + OCR → B 稿 txt
     B 路:提取音频(16kHz/单声道/16bit WAV)
 
     使用 --dry-run 可跳过 OCR 调用,先验证裁切框位置:
@@ -74,7 +95,10 @@ def split(
     click.echo(f"[doco split] episode_id={episode_id}")
     click.echo(f"[doco split] input_video={video_path}")
     click.echo(f"[doco split] output_dir={out_dir}")
+    click.echo(f"[doco split] hash_algorithm={hash_algorithm}")
     click.echo(f"[doco split] phash_threshold={phash_threshold}")
+    click.echo(f"[doco split] dhash_threshold={dhash_threshold}")
+    click.echo(f"[doco split] iou_threshold={iou_threshold}")
     click.echo(f"[doco split] dry_run={dry_run}")
 
     try:
@@ -82,7 +106,10 @@ def split(
             video_path=video_path,
             output_dir=out_dir,
             episode_id=episode_id,
+            hash_algorithm=hash_algorithm,
             phash_threshold=phash_threshold,
+            dhash_threshold=dhash_threshold,
+            iou_threshold=iou_threshold,
             dry_run=dry_run,
         )
         if dry_run: