diff --git a/astrbot/dashboard/routes/knowledge_base.py b/astrbot/dashboard/routes/knowledge_base.py
index d7db42c40..537a81f0b 100644
--- a/astrbot/dashboard/routes/knowledge_base.py
+++ b/astrbot/dashboard/routes/knowledge_base.py
@@ -48,6 +48,7 @@ class KnowledgeBaseRoute(Route):
             # 文档管理
             "/kb/document/list": ("GET", self.list_documents),
             "/kb/document/upload": ("POST", self.upload_document),
+            "/kb/document/import": ("POST", self.import_documents),
             "/kb/document/upload/url": ("POST", self.upload_document_from_url),
             "/kb/document/upload/progress": ("GET", self.get_upload_progress),
             "/kb/document/get": ("GET", self.get_document),
@@ -66,6 +67,65 @@ class KnowledgeBaseRoute(Route):
     def _get_kb_manager(self):
         return self.core_lifecycle.kb_manager
 
+    def _init_task(self, task_id: str, status: str = "pending") -> None:
+        self.upload_tasks[task_id] = {
+            "status": status,
+            "result": None,
+            "error": None,
+        }
+
+    def _set_task_result(
+        self, task_id: str, status: str, result: any = None, error: str | None = None
+    ) -> None:
+        self.upload_tasks[task_id] = {
+            "status": status,
+            "result": result,
+            "error": error,
+        }
+        if task_id in self.upload_progress:
+            self.upload_progress[task_id]["status"] = status
+
+    def _update_progress(
+        self,
+        task_id: str,
+        *,
+        status: str | None = None,
+        file_index: int | None = None,
+        file_name: str | None = None,
+        stage: str | None = None,
+        current: int | None = None,
+        total: int | None = None,
+    ) -> None:
+        if task_id not in self.upload_progress:
+            return
+        p = self.upload_progress[task_id]
+        if status is not None:
+            p["status"] = status
+        if file_index is not None:
+            p["file_index"] = file_index
+        if file_name is not None:
+            p["file_name"] = file_name
+        if stage is not None:
+            p["stage"] = stage
+        if current is not None:
+            p["current"] = current
+        if total is not None:
+            p["total"] = total
+
+    def _make_progress_callback(self, task_id: str, file_idx: int, file_name: str):
+        async def _callback(stage: str, current: int, total: int):
+            self._update_progress(
+                task_id,
+                status="processing",
+                file_index=file_idx,
+                file_name=file_name,
+                stage=stage,
+                current=current,
+                total=total,
+            )
+
+        return _callback
+
     async def _background_upload_task(
         self,
         task_id: str,
@@ -80,11 +140,7 @@ class KnowledgeBaseRoute(Route):
         """后台上传任务"""
         try:
             # 初始化任务状态
-            self.upload_tasks[task_id] = {
-                "status": "processing",
-                "result": None,
-                "error": None,
-            }
+            self._init_task(task_id, status="processing")
             self.upload_progress[task_id] = {
                 "status": "processing",
                 "file_index": 0,
@@ -100,30 +156,20 @@ class KnowledgeBaseRoute(Route):
             for file_idx, file_info in enumerate(files_to_upload):
                 try:
                     # 更新整体进度
-                    self.upload_progress[task_id].update(
-                        {
-                            "status": "processing",
-                            "file_index": file_idx,
-                            "file_name": file_info["file_name"],
-                            "stage": "parsing",
-                            "current": 0,
-                            "total": 100,
-                        },
+                    self._update_progress(
+                        task_id,
+                        status="processing",
+                        file_index=file_idx,
+                        file_name=file_info["file_name"],
+                        stage="parsing",
+                        current=0,
+                        total=100,
                     )
 
                     # 创建进度回调函数
-                    async def progress_callback(stage, current, total):
-                        if task_id in self.upload_progress:
-                            self.upload_progress[task_id].update(
-                                {
-                                    "status": "processing",
-                                    "file_index": file_idx,
-                                    "file_name": file_info["file_name"],
-                                    "stage": stage,
-                                    "current": current,
-                                    "total": total,
-                                },
-                            )
+                    progress_callback = self._make_progress_callback(
+                        task_id, file_idx, file_info["file_name"]
+                    )
 
                     doc = await kb_helper.upload_document(
                         file_name=file_info["file_name"],
@@ -154,23 +200,99 @@ class KnowledgeBaseRoute(Route):
                 "failed_count": len(failed_docs),
             }
 
-            self.upload_tasks[task_id] = {
-                "status": "completed",
-                "result": result,
-                "error": None,
-            }
-            self.upload_progress[task_id]["status"] = "completed"
+            self._set_task_result(task_id, "completed", result=result)
 
         except Exception as e:
             logger.error(f"后台上传任务 {task_id} 失败: {e}")
             logger.error(traceback.format_exc())
-            self.upload_tasks[task_id] = {
-                "status": "failed",
-                "result": None,
-                "error": str(e),
+            self._set_task_result(task_id, "failed", error=str(e))
+
+    async def _background_import_task(
+        self,
+        task_id: str,
+        kb_helper,
+        documents: list,
+        batch_size: int,
+        tasks_limit: int,
+        max_retries: int,
+    ):
+        """后台导入预切片文档任务"""
+        try:
+            # 初始化任务状态
+            self._init_task(task_id, status="processing")
+            self.upload_progress[task_id] = {
+                "status": "processing",
+                "file_index": 0,
+                "file_total": len(documents),
+                "stage": "waiting",
+                "current": 0,
+                "total": 100,
             }
-            if task_id in self.upload_progress:
-                self.upload_progress[task_id]["status"] = "failed"
+
+            uploaded_docs = []
+            failed_docs = []
+
+            for file_idx, doc_info in enumerate(documents):
+                file_name = doc_info.get("file_name", f"imported_doc_{file_idx}")
+                chunks = doc_info.get("chunks", [])
+
+                try:
+                    # 更新整体进度
+                    self._update_progress(
+                        task_id,
+                        status="processing",
+                        file_index=file_idx,
+                        file_name=file_name,
+                        stage="importing",
+                        current=0,
+                        total=100,
+                    )
+
+                    # 创建进度回调函数
+                    progress_callback = self._make_progress_callback(
+                        task_id, file_idx, file_name
+                    )
+
+                    # 调用 upload_document，传入 pre_chunked_text
+                    doc = await kb_helper.upload_document(
+                        file_name=file_name,
+                        file_content=None,  # 预切片模式下不需要原始内容
+                        file_type=doc_info.get("file_type")
+                        or (
+                            file_name.rsplit(".", 1)[-1].lower()
+                            if "." in file_name
+                            else "txt"
+                        ),
+                        batch_size=batch_size,
+                        tasks_limit=tasks_limit,
+                        max_retries=max_retries,
+                        progress_callback=progress_callback,
+                        pre_chunked_text=chunks,
+                    )
+
+                    uploaded_docs.append(doc.model_dump())
+                except Exception as e:
+                    logger.error(f"导入文档 {file_name} 失败: {e}")
+                    failed_docs.append(
+                        {"file_name": file_name, "error": str(e)},
+                    )
+
+            # 更新任务完成状态
+            result = {
+                "task_id": task_id,
+                "uploaded": uploaded_docs,
+                "failed": failed_docs,
+                "total": len(documents),
+                "success_count": len(uploaded_docs),
+                "failed_count": len(failed_docs),
+            }
+
+            self._set_task_result(task_id, "completed", result=result)
+
+        except Exception as e:
+            logger.error(f"后台导入任务 {task_id} 失败: {e}")
+            logger.error(traceback.format_exc())
+            self._set_task_result(task_id, "failed", error=str(e))
 
     async def list_kbs(self):
         """获取知识库列表
@@ -614,11 +736,7 @@ class KnowledgeBaseRoute(Route):
             task_id = str(uuid.uuid4())
 
             # 初始化任务状态
-            self.upload_tasks[task_id] = {
-                "status": "pending",
-                "result": None,
-                "error": None,
-            }
+            self._init_task(task_id, status="pending")
 
             # 启动后台任务
             asyncio.create_task(
@@ -653,6 +771,93 @@ class KnowledgeBaseRoute(Route):
             logger.error(traceback.format_exc())
             return Response().error(f"上传文档失败: {e!s}").__dict__
 
+    def _validate_import_request(self, data: dict):
+        kb_id = data.get("kb_id")
+        if not kb_id:
+            raise ValueError("缺少参数 kb_id")
+
+        documents = data.get("documents")
+        if not documents or not isinstance(documents, list):
+            raise ValueError("缺少参数 documents 或格式错误")
+
+        for doc in documents:
+            if "file_name" not in doc or "chunks" not in doc:
+                raise ValueError("文档格式错误，必须包含 file_name 和 chunks")
+            if not isinstance(doc["chunks"], list):
+                raise ValueError("chunks 必须是列表")
+            if not all(
+                isinstance(chunk, str) and chunk.strip() for chunk in doc["chunks"]
+            ):
+                raise ValueError("chunks 必须是非空字符串列表")
+
+        batch_size = data.get("batch_size", 32)
+        tasks_limit = data.get("tasks_limit", 3)
+        max_retries = data.get("max_retries", 3)
+        return kb_id, documents, batch_size, tasks_limit, max_retries
+
+    async def import_documents(self):
+        """导入预切片文档
+
+        Body:
+        - kb_id: 知识库 ID (必填)
+        - documents: 文档列表 (必填)
+            - file_name: 文件名 (必填)
+            - chunks: 切片列表 (必填, list[str])
+            - file_type: 文件类型 (可选, 默认从文件名推断或为 txt)
+        - batch_size: 批处理大小 (可选, 默认32)
+        - tasks_limit: 并发任务限制 (可选, 默认3)
+        - max_retries: 最大重试次数 (可选, 默认3)
+        """
+        try:
+            kb_manager = self._get_kb_manager()
+            data = await request.json
+
+            kb_id, documents, batch_size, tasks_limit, max_retries = (
+                self._validate_import_request(data)
+            )
+
+            # 获取知识库
+            kb_helper = await kb_manager.get_kb(kb_id)
+            if not kb_helper:
+                return Response().error("知识库不存在").__dict__
+
+            # 生成任务ID
+            task_id = str(uuid.uuid4())
+
+            # 初始化任务状态
+            self._init_task(task_id, status="pending")
+
+            # 启动后台任务
+            asyncio.create_task(
+                self._background_import_task(
+                    task_id=task_id,
+                    kb_helper=kb_helper,
+                    documents=documents,
+                    batch_size=batch_size,
+                    tasks_limit=tasks_limit,
+                    max_retries=max_retries,
+                ),
+            )
+
+            return (
+                Response()
+                .ok(
+                    {
+                        "task_id": task_id,
+                        "doc_count": len(documents),
+                        "message": "import task created, processing in background",
+                    },
+                )
+                .__dict__
+            )
+
+        except ValueError as e:
+            return Response().error(str(e)).__dict__
+        except Exception as e:
+            logger.error(f"导入文档失败: {e}")
+            logger.error(traceback.format_exc())
+            return Response().error(f"导入文档失败: {e!s}").__dict__
+
     async def get_upload_progress(self):
         """获取上传进度和结果
 
@@ -960,11 +1165,7 @@ class KnowledgeBaseRoute(Route):
             task_id = str(uuid.uuid4())
 
             # 初始化任务状态
-            self.upload_tasks[task_id] = {
-                "status": "pending",
-                "result": None,
-                "error": None,
-            }
+            self._init_task(task_id, status="pending")
 
             # 启动后台任务
             asyncio.create_task(
@@ -1017,11 +1218,7 @@ class KnowledgeBaseRoute(Route):
         """后台上传URL任务"""
         try:
             # 初始化任务状态
-            self.upload_tasks[task_id] = {
-                "status": "processing",
-                "result": None,
-                "error": None,
-            }
+            self._init_task(task_id, status="processing")
             self.upload_progress[task_id] = {
                 "status": "processing",
                 "file_index": 0,
@@ -1033,18 +1230,7 @@ class KnowledgeBaseRoute(Route):
             }
 
             # 创建进度回调函数
-            async def progress_callback(stage, current, total):
-                if task_id in self.upload_progress:
-                    self.upload_progress[task_id].update(
-                        {
-                            "status": "processing",
-                            "file_index": 0,
-                            "file_name": f"URL: {url}",
-                            "stage": stage,
-                            "current": current,
-                            "total": total,
-                        },
-                    )
+            progress_callback = self._make_progress_callback(task_id, 0, f"URL: {url}")
 
             # 上传文档
             doc = await kb_helper.upload_from_url(
@@ -1069,20 +1255,9 @@ class KnowledgeBaseRoute(Route):
                 "failed_count": 0,
             }
 
-            self.upload_tasks[task_id] = {
-                "status": "completed",
-                "result": result,
-                "error": None,
-            }
-            self.upload_progress[task_id]["status"] = "completed"
+            self._set_task_result(task_id, "completed", result=result)
 
         except Exception as e:
             logger.error(f"后台上传URL任务 {task_id} 失败: {e}")
             logger.error(traceback.format_exc())
-            self.upload_tasks[task_id] = {
-                "status": "failed",
-                "result": None,
-                "error": str(e),
-            }
-            if task_id in self.upload_progress:
-                self.upload_progress[task_id]["status"] = "failed"
+            self._set_task_result(task_id, "failed", error=str(e))
diff --git a/tests/test_kb_import.py b/tests/test_kb_import.py
new file mode 100644
index 000000000..8ad40f540
--- /dev/null
+++ b/tests/test_kb_import.py
@@ -0,0 +1,209 @@
+import asyncio
+from unittest.mock import AsyncMock, MagicMock
+
+import pytest
+import pytest_asyncio
+from quart import Quart
+
+from astrbot.core import LogBroker
+from astrbot.core.core_lifecycle import AstrBotCoreLifecycle
+from astrbot.core.db.sqlite import SQLiteDatabase
+from astrbot.core.knowledge_base.kb_helper import KBHelper
+from astrbot.core.knowledge_base.models import KBDocument
+from astrbot.dashboard.server import AstrBotDashboard
+
+
+@pytest_asyncio.fixture(scope="module")
+async def core_lifecycle_td(tmp_path_factory):
+    """Creates and initializes a core lifecycle instance with a temporary database."""
+    tmp_db_path = tmp_path_factory.mktemp("data") / "test_data_kb.db"
+    db = SQLiteDatabase(str(tmp_db_path))
+    log_broker = LogBroker()
+    core_lifecycle = AstrBotCoreLifecycle(log_broker, db)
+    await core_lifecycle.initialize()
+
+    # Mock kb_manager and kb_helper
+    kb_manager = MagicMock()
+    kb_helper = AsyncMock(spec=KBHelper)
+
+    # Configure get_kb to be an async mock that returns kb_helper
+    kb_manager.get_kb = AsyncMock(return_value=kb_helper)
+
+    # Mock upload_document return value
+    mock_doc = KBDocument(
+        doc_id="test_doc_id",
+        kb_id="test_kb_id",
+        doc_name="test_file.txt",
+        file_type="txt",
+        file_size=100,
+        file_path="",
+        chunk_count=2,
+        media_count=0,
+    )
+    kb_helper.upload_document.return_value = mock_doc
+
+    # kb_manager.get_kb.return_value = kb_helper # Removed this line as it's handled above
+    core_lifecycle.kb_manager = kb_manager
+
+    try:
+        yield core_lifecycle
+    finally:
+        try:
+            _stop_res = core_lifecycle.stop()
+            if asyncio.iscoroutine(_stop_res):
+                await _stop_res
+        except Exception:
+            pass
+
+
+@pytest.fixture(scope="module")
+def app(core_lifecycle_td: AstrBotCoreLifecycle):
+    """Creates a Quart app instance for testing."""
+    shutdown_event = asyncio.Event()
+    server = AstrBotDashboard(core_lifecycle_td, core_lifecycle_td.db, shutdown_event)
+    return server.app
+
+
+@pytest_asyncio.fixture(scope="module")
+async def authenticated_header(app: Quart, core_lifecycle_td: AstrBotCoreLifecycle):
+    """Handles login and returns an authenticated header."""
+    test_client = app.test_client()
+    response = await test_client.post(
+        "/api/auth/login",
+        json={
+            "username": core_lifecycle_td.astrbot_config["dashboard"]["username"],
+            "password": core_lifecycle_td.astrbot_config["dashboard"]["password"],
+        },
+    )
+    data = await response.get_json()
+    assert data["status"] == "ok"
+    token = data["data"]["token"]
+    return {"Authorization": f"Bearer {token}"}
+
+
+@pytest.mark.asyncio
+async def test_import_documents(
+    app: Quart, authenticated_header: dict, core_lifecycle_td: AstrBotCoreLifecycle
+):
+    """Tests the import documents functionality."""
+    test_client = app.test_client()
+
+    # Test data
+    import_data = {
+        "kb_id": "test_kb_id",
+        "documents": [
+            {"file_name": "test_file_1.txt", "chunks": ["chunk1", "chunk2"]},
+            {"file_name": "test_file_2.md", "chunks": ["chunk3", "chunk4", "chunk5"]},
+        ],
+    }
+
+    # Send request
+    response = await test_client.post(
+        "/api/kb/document/import", json=import_data, headers=authenticated_header
+    )
+
+    # Verify response
+    assert response.status_code == 200
+    data = await response.get_json()
+    assert data["status"] == "ok"
+    assert "task_id" in data["data"]
+    assert data["data"]["doc_count"] == 2
+
+    task_id = data["data"]["task_id"]
+
+    # Wait for background task to complete (mocked)
+    # Since we mocked upload_document, it should be fast, but we might need to poll progress
+    for _ in range(10):
+        progress_response = await test_client.get(
+            f"/api/kb/document/upload/progress?task_id={task_id}",
+            headers=authenticated_header,
+        )
+        progress_data = await progress_response.get_json()
+        if progress_data["data"]["status"] == "completed":
+            break
+        await asyncio.sleep(0.1)
+
+    assert progress_data["data"]["status"] == "completed"
+    result = progress_data["data"]["result"]
+    assert result["success_count"] == 2
+    assert result["failed_count"] == 0
+
+    # Verify kb_helper.upload_document was called correctly
+    kb_helper = await core_lifecycle_td.kb_manager.get_kb("test_kb_id")
+    assert kb_helper.upload_document.call_count == 2
+
+    # Check first call arguments
+    call_args_list = kb_helper.upload_document.call_args_list
+
+    # First document
+    args1, kwargs1 = call_args_list[0]
+    assert kwargs1["file_name"] == "test_file_1.txt"
+    assert kwargs1["pre_chunked_text"] == ["chunk1", "chunk2"]
+
+    # Second document
+    args2, kwargs2 = call_args_list[1]
+    assert kwargs2["file_name"] == "test_file_2.md"
+    assert kwargs2["pre_chunked_text"] == ["chunk3", "chunk4", "chunk5"]
+
+
+@pytest.mark.asyncio
+async def test_import_documents_invalid_input(app: Quart, authenticated_header: dict):
+    """Tests import documents with invalid input."""
+    test_client = app.test_client()
+
+    # Missing kb_id
+    response = await test_client.post(
+        "/api/kb/document/import", json={"documents": []}, headers=authenticated_header
+    )
+    data = await response.get_json()
+    assert data["status"] == "error"
+    assert "缺少参数 kb_id" in data["message"]
+
+    # Missing documents
+    response = await test_client.post(
+        "/api/kb/document/import",
+        json={"kb_id": "test_kb"},
+        headers=authenticated_header,
+    )
+    data = await response.get_json()
+    assert data["status"] == "error"
+    assert "缺少参数 documents" in data["message"]
+
+    # Invalid document format
+    response = await test_client.post(
+        "/api/kb/document/import",
+        json={
+            "kb_id": "test_kb",
+            "documents": [{"file_name": "test"}],  # Missing chunks
+        },
+        headers=authenticated_header,
+    )
+    data = await response.get_json()
+    assert data["status"] == "error"
+    assert "文档格式错误" in data["message"]
+
+    # Invalid chunks type
+    response = await test_client.post(
+        "/api/kb/document/import",
+        json={
+            "kb_id": "test_kb",
+            "documents": [{"file_name": "test", "chunks": "not-a-list"}],
+        },
+        headers=authenticated_header,
+    )
+    data = await response.get_json()
+    assert data["status"] == "error"
+    assert "chunks 必须是列表" in data["message"]
+
+    # Invalid chunks content
+    response = await test_client.post(
+        "/api/kb/document/import",
+        json={
+            "kb_id": "test_kb",
+            "documents": [{"file_name": "test", "chunks": ["valid", ""]}],
+        },
+        headers=authenticated_header,
+    )
+    data = await response.get_json()
+    assert data["status"] == "error"
+    assert "chunks 必须是非空字符串列表" in data["message"]