diff --git a/backend/app/api/data_sources.py b/backend/app/api/data_sources.py
new file mode 100644
index 0000000..3a40c82
--- /dev/null
+++ b/backend/app/api/data_sources.py
@@ -0,0 +1,27 @@
+from fastapi import APIRouter, HTTPException
+
+from ..schemas.template import DataSourcePayload
+
+
+router = APIRouter(prefix="/api/data-sources", tags=["data-sources"])
+
+DATA_SOURCES: list[dict] = [
+    {"code": "policy", "name": "政策文件", "description": "政策法规、制度文件等资料"},
+    {"code": "business_data", "name": "业务数据", "description": "业务系统导出的结构化数据"},
+    {"code": "research", "name": "调研材料", "description": "访谈、问卷、调研纪要等非结构化资料"},
+]
+
+
+@router.get("")
+def list_data_sources():
+    return {"data": DATA_SOURCES, "message": "ok"}
+
+
+@router.post("")
+def create_data_source(payload: DataSourcePayload):
+    if any(item["code"] == payload.code for item in DATA_SOURCES):
+        raise HTTPException(status_code=400, detail="数据源编码已存在")
+
+    item = payload.model_dump()
+    DATA_SOURCES.append(item)
+    return {"data": item, "message": "ok"}
diff --git a/backend/app/api/templates.py b/backend/app/api/templates.py
index 65499d7..c16d17b 100644
--- a/backend/app/api/templates.py
+++ b/backend/app/api/templates.py
@@ -1,8 +1,16 @@
+import json
+
 from fastapi import APIRouter, Depends, File, Form, HTTPException, UploadFile
 from sqlalchemy.orm import Session
 
 from ..database import get_db
+from ..models.block_config import BlockConfig
+from ..models.template import Template
+from ..models.template_block import TemplateBlock
+from ..schemas.template import BlockConfigPayload
+from ..services.doc_parser import build_tree
 from ..services.doc_parser import parse_document
+from ..services.html_generator import generate_preview_html
 from ..services.template_service import create_template_record, save_template_blocks, store_template_file
 
 
@@ -37,3 +45,120 @@ def upload_template(
         },
         "message": "ok",
     }
+
+
+@router.get("/{template_id}")
+def get_template_detail(template_id: int, db: Session = Depends(get_db)):
+    template = db.get(Template, template_id)
+    if not template:
+        raise HTTPException(status_code=404, detail="模板不存在")
+
+    block_records = (
+        db.query(TemplateBlock)
+        .filter(TemplateBlock.template_id == template_id)
+        .order_by(TemplateBlock.sort_order.asc(), TemplateBlock.id.asc())
+        .all()
+    )
+    blocks = [serialize_block(block) for block in block_records]
+    tree = build_tree([block.copy() for block in blocks])
+    configs = {
+        config.block_id: serialize_config(config)
+        for config in db.query(BlockConfig).filter(BlockConfig.template_id == template_id).all()
+    }
+
+    return {
+        "data": {
+            "template": serialize_template(template),
+            "preview_html": generate_preview_html(blocks),
+            "blocks": blocks,
+            "tree": tree,
+            "configs": configs,
+        },
+        "message": "ok",
+    }
+
+
+@router.post("/{template_id}/blocks/{block_id}/config")
+def save_block_config(
+    template_id: int,
+    block_id: str,
+    payload: BlockConfigPayload,
+    db: Session = Depends(get_db),
+):
+    block = (
+        db.query(TemplateBlock)
+        .filter(TemplateBlock.template_id == template_id, TemplateBlock.block_id == block_id)
+        .first()
+    )
+    if not block:
+        raise HTTPException(status_code=404, detail="模板区域不存在")
+
+    config = (
+        db.query(BlockConfig)
+        .filter(BlockConfig.template_id == template_id, BlockConfig.block_id == block_id)
+        .first()
+    )
+    if not config:
+        config = BlockConfig(template_id=template_id, block_id=block_id)
+        db.add(config)
+
+    config.region_name = payload.region_name
+    config.region_type = payload.region_type
+    config.data_sources = json.dumps(payload.data_sources, ensure_ascii=False)
+    config.prompt = payload.prompt
+    config.output_format = payload.output_format
+    config.need_review = payload.need_review
+    config.remark = payload.remark
+    config.enabled = payload.enabled
+
+    db.commit()
+    db.refresh(config)
+    return {"data": serialize_config(config), "message": "ok"}
+
+
+def serialize_template(template: Template) -> dict:
+    return {
+        "id": template.id,
+        "name": template.name,
+        "type": template.type,
+        "version": template.version,
+        "original_file_path": template.original_file_path,
+        "status": template.status,
+        "created_by": template.created_by,
+        "created_at": template.created_at.isoformat() if template.created_at else None,
+        "updated_at": template.updated_at.isoformat() if template.updated_at else None,
+    }
+
+
+def serialize_block(block: TemplateBlock) -> dict:
+    return {
+        "id": block.id,
+        "template_id": block.template_id,
+        "block_id": block.block_id,
+        "parent_block_id": block.parent_block_id,
+        "type": block.block_type,
+        "block_type": block.block_type,
+        "block_name": block.block_name,
+        "text": block.text_preview or "",
+        "text_preview": block.text_preview,
+        "level": block.level,
+        "sort_order": block.sort_order,
+        "table_rows": block.table_rows,
+        "table_cols": block.table_cols,
+    }
+
+
+def serialize_config(config: BlockConfig) -> dict:
+    return {
+        "id": config.id,
+        "template_id": config.template_id,
+        "block_id": config.block_id,
+        "region_name": config.region_name,
+        "region_type": config.region_type,
+        "data_sources": json.loads(config.data_sources or "[]"),
+        "prompt": config.prompt,
+        "output_format": config.output_format,
+        "need_review": config.need_review,
+        "remark": config.remark,
+        "enabled": config.enabled,
+    }
diff --git a/backend/app/main.py b/backend/app/main.py
index 8d3b017..c9bfeed 100644
--- a/backend/app/main.py
+++ b/backend/app/main.py
@@ -1,6 +1,7 @@
 from fastapi import FastAPI
 from fastapi.middleware.cors import CORSMiddleware
 
+from .api.data_sources import router as data_sources_router
 from .api.templates import router as templates_router
 
 app = FastAPI(title="AI 文档模板生成系统", version="0.1.0")
@@ -14,6 +15,7 @@ app.add_middleware(
 )
 
 app.include_router(templates_router)
+app.include_router(data_sources_router)
 
 
 @app.get("/health")
diff --git a/backend/app/schemas/template.py b/backend/app/schemas/template.py
new file mode 100644
index 0000000..caca0ad
--- /dev/null
+++ b/backend/app/schemas/template.py
@@ -0,0 +1,18 @@
+from pydantic import BaseModel, Field
+
+
+class BlockConfigPayload(BaseModel):
+    region_name: str | None = None
+    region_type: str = "ai_generate"
+    data_sources: list[str] = Field(default_factory=list)
+    prompt: str | None = None
+    output_format: str = "formal_paragraph"
+    need_review: int = 1
+    remark: str | None = None
+    enabled: int = 1
+
+
+class DataSourcePayload(BaseModel):
+    name: str
+    code: str
+    description: str | None = None
diff --git a/docs/AI文档模板系统-像素级任务清单-20260701.md b/docs/AI文档模板系统-像素级任务清单-20260701.md
index 0e190f0..a52fa9d 100644
--- a/docs/AI文档模板系统-像素级任务清单-20260701.md
+++ b/docs/AI文档模板系统-像素级任务清单-20260701.md
@@ -45,10 +45,10 @@
 | 028 | 表格 → `<table data-block-id>` 转换 + 边框样式 | 后端 | 0.25d | ✅ 已完成 |
 | 029 | 拼接完整 HTML 字符串（带内联 CSS） | 后端 | 0.25d | ✅ 已完成 |
 | | **查询 + 配置接口** | | | |
-| 030 | 实现 `GET /api/templates/{id}` 组装全部数据 | 后端 | 0.5d | ⏳ 未完成 |
-| 031 | 实现 `POST /api/templates/{id}/blocks/{blockId}/config` upsert | 后端 | 0.25d | ⏳ 未完成 |
-| 032 | 实现 `GET /api/data-sources` 返回预设列表 | 后端 | 0.25d | ⏳ 未完成 |
-| 033 | 实现 `POST /api/data-sources` 新增数据源 | 后端 | 0.25d | ⏳ 未完成 |
+| 030 | 实现 `GET /api/templates/{id}` 组装全部数据 | 后端 | 0.5d | ✅ 已完成 |
+| 031 | 实现 `POST /api/templates/{id}/blocks/{blockId}/config` upsert | 后端 | 0.25d | ✅ 已完成 |
+| 032 | 实现 `GET /api/data-sources` 返回预设列表 | 后端 | 0.25d | ✅ 已完成 |
+| 033 | 实现 `POST /api/data-sources` 新增数据源 | 后端 | 0.25d | ✅ 已完成 |
 | | **四栏布局** | | | |
 | 034 | 实现四栏 CSS Grid 布局 | 前端 | 0.5d | ⏳ 未完成 |
 | 035 | 实现左侧菜单 shell 组件 | 前端 | 0.25d | ⏳ 未完成 |
diff --git a/docs/tasks/task_detail_2026_07_01.md b/docs/tasks/task_detail_2026_07_01.md
index 23faf7d..d1fe526 100644
--- a/docs/tasks/task_detail_2026_07_01.md
+++ b/docs/tasks/task_detail_2026_07_01.md
@@ -47,3 +47,15 @@
     5. 增加 HTML 转义，避免 Word 文本中的特殊字符破坏预览结构。
     6. 使用示例 blocks 验证标题、段落、表格 HTML 均生成正确。
 - **执行结果**: 完成任务 026-029，HTML 预览生成服务已满足基础预览要求。
+
+## 会话 ID: 20260701-query-config-api
+- [2026-07-01 20:31:33]
+- **执行原因**: 按任务清单继续完成查询与配置接口 030-033。
+- **执行过程**:
+    1. 新增 `BlockConfigPayload` 和 `DataSourcePayload` 请求模型。
+    2. 实现 `GET /api/templates/{template_id}`，聚合模板、预览 HTML、blocks、tree 和 configs。
+    3. 实现 `POST /api/templates/{template_id}/blocks/{block_id}/config`，按 `(template_id, block_id)` 进行 upsert。
+    4. 新增 `GET /api/data-sources` 返回 MVP 预设数据源列表。
+    5. 新增 `POST /api/data-sources` 支持新增内存数据源并校验 code 唯一。
+    6. 执行语法检查和 FastAPI 路由注册检查。
+- **执行结果**: 完成任务 030-033，模板详情、区域配置保存和数据源接口已可调用。