diff --git a/src/cli/main.py b/src/cli/main.py
new file mode 100644
index 0000000..8aff262
--- /dev/null
+++ b/src/cli/main.py
@@ -0,0 +1,90 @@
+"""命令行工具入口."""
+from pathlib import Path
+import sys
+
+import typer
+import uvicorn
+
+# 确保 src 在路径中
+sys.path.insert(0, str(Path(__file__).parent.parent))
+
+from src.core.config import load_config
+from src.core.db import VectorDB
+from src.core.embedder import create_embedder
+from src.core.ingest import DocumentIngestor
+from src.core.search import Searcher
+
+
+app = typer.Typer(name="md-vector-db", help="Markdown 文档向量数据库管理工具")
+
+
+def _get_components(config_path: str = "config.yaml"):
+    """初始化所有组件."""
+    cfg = load_config(config_path)
+    db = VectorDB(persist_dir=cfg.chroma.persist_dir)
+    embedder = create_embedder(cfg.embed)
+    searcher = Searcher(db, embedder, cfg.chroma.collection_name)
+    ingestor = DocumentIngestor(db, embedder, cfg.chroma.collection_name)
+    return cfg, searcher, ingestor
+
+
+@app.command()
+def ingest(file_path: str):
+    """入库单个 Markdown 文件."""
+    _, _, ingestor = _get_components()
+    count = ingestor.ingest_file(file_path)
+    typer.echo(f"✅ 已入库: {file_path} ({count} 个 chunks)")
+
+
+@app.command()
+def ingest_dir(dir_path: str):
+    """入库目录下所有 Markdown 文件."""
+    _, _, ingestor = _get_components()
+    results = ingestor.ingest_directory(dir_path)
+    total = sum(results.values())
+    for name, count in results.items():
+        typer.echo(f"  📄 {name}: {count} chunks")
+    typer.echo(f"✅ 共入库 {len(results)} 个文件, {total} 个 chunks")
+
+
+@app.command()
+def search(query: str, top_k: int = 10):
+    """语义检索."""
+    _, searcher, _ = _get_components()
+    results = searcher.search(query, top_k=top_k)
+    if not results:
+        typer.echo("未找到匹配结果。")
+        return
+    for i, r in enumerate(results, 1):
+        typer.echo(f"\n--- 结果 {i} (相似度: {r['score']:.4f}) ---")
+        typer.echo(f"📄 来源: {r['source_file']}")
+        if r["section_title"]:
+            typer.echo(f"📑 章节: {r['section_title']}")
+        preview = r["content"][:200] + "..." if len(r["content"]) > 200 else r["content"]
+        typer.echo(preview)
+
+
+@app.command()
+def serve(port: int = 8000):
+    """启动 HTTP 服务."""
+    typer.echo(f"🚀 启动服务: http://0.0.0.0:{port}")
+    uvicorn.run("src.server.app:app", host="0.0.0.0", port=port, reload=False)
+
+
+@app.command()
+def stats():
+    """查看统计信息."""
+    _, searcher, _ = _get_components()
+    info = searcher.get_collection_info()
+    sources = searcher.list_sources()
+    typer.echo(f"📊 Collection: {info['name']}")
+    typer.echo(f"📦 总 chunks: {info['count']}")
+    typer.echo(f"📄 源文件数: {len(sources)}")
+    if sources:
+        typer.echo("\n源文件列表:")
+        for s in sources:
+            typer.echo(f"  - {s}")
+
+
+if __name__ == "__main__":
+    app()