diff --git a/infra/docker/worker.Dockerfile b/infra/docker/worker.Dockerfile
index 4283c5d7c..e2f130d4a 100755
--- a/infra/docker/worker.Dockerfile
+++ b/infra/docker/worker.Dockerfile
@@ -28,6 +28,12 @@ RUN python -m venv /opt/venv \
     && /opt/venv/bin/pip install --no-cache-dir -i https://mirrors.aliyun.com/pypi/simple/ --trusted-host mirrors.aliyun.com -r /tmp/requirements-base.txt \
     && rm /tmp/requirements-base.txt
 
+# ---- 依赖分层：Worker 专属大包（视频处理，变化极少）----
+COPY requirements-worker.txt /tmp/requirements-worker.txt
+
+RUN /opt/venv/bin/pip install --no-cache-dir -i https://mirrors.aliyun.com/pypi/simple/ --trusted-host mirrors.aliyun.com -r /tmp/requirements-worker.txt \
+    && rm /tmp/requirements-worker.txt
+
 # ---- 依赖分层：业务依赖（变化频繁）----
 COPY requirements.txt /tmp/requirements.txt
 
diff --git a/requirements-base.txt b/requirements-base.txt
index 64b22cf16..f01d9a400 100755
--- a/requirements-base.txt
+++ b/requirements-base.txt
@@ -22,13 +22,6 @@ redis==5.2.0
 # 任务队列
 celery==5.4.0
 
-# 视频处理（大包，变化极少）
-numpy>=1.24.0
-scipy>=1.10.0
-opencv-python-headless>=4.8.0
-Pillow==10.4.0
-ffmpeg-python==0.2.0
-
 # 对象存储
 oss2==2.18.4
 
diff --git a/requirements-worker.txt b/requirements-worker.txt
new file mode 100644
index 000000000..2a01cb870
--- /dev/null
+++ b/requirements-worker.txt
@@ -0,0 +1,17 @@
+# 小虾 SaaS - Worker 专属依赖（视频处理大包，仅 Worker 需要）
+# 这些包体积大，API 服务不需要安装
+
+# 数值计算
+numpy>=1.24.0
+
+# 科学计算
+scipy>=1.10.0
+
+# 计算机视觉（视频去重、帧处理）
+opencv-python-headless>=4.8.0
+
+# 图像处理
+Pillow==10.4.0
+
+# FFmpeg Python 绑定
+ffmpeg-python==0.2.0