diff --git a/src/controller/dict.controller.ts b/src/controller/dict.controller.ts
new file mode 100644
index 0000000..a8e082a
--- /dev/null
+++ b/src/controller/dict.controller.ts
@@ -0,0 +1,62 @@
+import { Inject, Controller, Get, Post, Put, Del, Query, Body, Param } from '@midwayjs/core';
+import { DictService } from '../service/dict.service';
+import { CreateDictDTO, UpdateDictDTO, CreateDictItemDTO, UpdateDictItemDTO } from '../dto/dict.dto';
+import { Validate } from '@midwayjs/validate';
+
+@Controller('/api')
+export class DictController {
+  @Inject()
+  dictService: DictService;
+
+  // 获取字典列表
+  @Get('/dicts')
+  async getDicts(@Query('title') title?: string) {
+    return this.dictService.getDicts(title);
+  }
+
+  // 创建新字典
+  @Post('/dicts')
+  @Validate()
+  async createDict(@Body() createDictDTO: CreateDictDTO) {
+    return this.dictService.createDict(createDictDTO);
+  }
+
+  // 更新字典
+  @Put('/dicts/:id')
+  @Validate()
+  async updateDict(@Param('id') id: number, @Body() updateDictDTO: UpdateDictDTO) {
+    return this.dictService.updateDict(id, updateDictDTO);
+  }
+
+  // 删除字典
+  @Del('/dicts/:id')
+  async deleteDict(@Param('id') id: number) {
+    return this.dictService.deleteDict(id);
+  }
+
+  // 获取字典项列表
+  @Get('/dict-items')
+  async getDictItems(@Query('dictId') dictId?: number) {
+    return this.dictService.getDictItems(dictId);
+  }
+
+  // 创建新字典项
+  @Post('/dict-items')
+  @Validate()
+  async createDictItem(@Body() createDictItemDTO: CreateDictItemDTO) {
+    return this.dictService.createDictItem(createDictItemDTO);
+  }
+
+  // 更新字典项
+  @Put('/dict-items/:id')
+  @Validate()
+  async updateDictItem(@Param('id') id: number, @Body() updateDictItemDTO: UpdateDictItemDTO) {
+    return this.dictService.updateDictItem(id, updateDictItemDTO);
+  }
+
+  // 删除字典项
+  @Del('/dict-items/:id')
+  async deleteDictItem(@Param('id') id: number) {
+    return this.dictService.deleteDictItem(id);
+  }
+}
diff --git a/src/dto/dict.dto.ts b/src/dto/dict.dto.ts
new file mode 100644
index 0000000..b84ac8e
--- /dev/null
+++ b/src/dto/dict.dto.ts
@@ -0,0 +1,40 @@
+import { Rule, RuleType } from '@midwayjs/validate';
+
+// 创建字典的数据传输对象
+export class CreateDictDTO {
+  @Rule(RuleType.string().required())
+  name: string; // 字典名称
+
+  @Rule(RuleType.string().required())
+  title: string; // 字典标题
+}
+
+// 更新字典的数据传输对象
+export class UpdateDictDTO {
+  @Rule(RuleType.string())
+  name?: string; // 字典名称 (可选)
+
+  @Rule(RuleType.string())
+  title?: string; // 字典标题 (可选)
+}
+
+// 创建字典项的数据传输对象
+export class CreateDictItemDTO {
+  @Rule(RuleType.string().required())
+  name: string; // 字典项名称
+
+  @Rule(RuleType.string().required())
+  title: string; // 字典项标题
+
+  @Rule(RuleType.number().required())
+  dictId: number; // 所属字典的ID
+}
+
+// 更新字典项的数据传输对象
+export class UpdateDictItemDTO {
+  @Rule(RuleType.string())
+  name?: string; // 字典项名称 (可选)
+
+  @Rule(RuleType.string())
+  title?: string; // 字典项标题 (可选)
+}
diff --git a/src/service/dict.service.ts b/src/service/dict.service.ts
new file mode 100644
index 0000000..8055007
--- /dev/null
+++ b/src/service/dict.service.ts
@@ -0,0 +1,84 @@
+import { Provide } from '@midwayjs/core';
+import { InjectEntityModel } from '@midwayjs/typeorm';
+import { Repository, Like } from 'typeorm';
+import { Dict } from '../entity/dict.entity';
+import { DictItem } from '../entity/dict_item.entity';
+import { CreateDictDTO, UpdateDictDTO } from '../dto/dict.dto';
+import { CreateDictItemDTO, UpdateDictItemDTO } from '../dto/dict.dto';
+
+@Provide()
+export class DictService {
+  @InjectEntityModel(Dict)
+  dictModel: Repository<Dict>;
+
+  @InjectEntityModel(DictItem)
+  dictItemModel: Repository<DictItem>;
+
+  // 获取字典列表，支持按标题搜索
+  async getDicts(title?: string) {
+    // 如果提供了标题，则使用模糊查询
+    if (title) {
+      return this.dictModel.find({ where: { title: Like(`%${title}%`) } });
+    }
+    // 否则，返回所有字典
+    return this.dictModel.find();
+  }
+
+  // 创建新字典
+  async createDict(createDictDTO: CreateDictDTO) {
+    const dict = new Dict();
+    dict.name = createDictDTO.name;
+    dict.title = createDictDTO.title;
+    return this.dictModel.save(dict);
+  }
+
+  // 更新字典
+  async updateDict(id: number, updateDictDTO: UpdateDictDTO) {
+    await this.dictModel.update(id, updateDictDTO);
+    return this.dictModel.findOneBy({ id });
+  }
+
+  // 删除字典及其所有字典项
+  async deleteDict(id: number) {
+    // 首先删除该字典下的所有字典项
+    await this.dictItemModel.delete({ dict: { id } });
+    // 然后删除字典本身
+    const result = await this.dictModel.delete(id);
+    return result.affected > 0;
+  }
+
+  // 获取字典项列表，支持按 dictId 过滤
+  async getDictItems(dictId?: number) {
+    // 如果提供了 dictId，则只返回该字典下的项
+    if (dictId) {
+      return this.dictItemModel.find({ where: { dict: { id: dictId } } });
+    }
+    // 否则，返回所有字典项
+    return this.dictItemModel.find();
+  }
+
+  // 创建新字典项
+  async createDictItem(createDictItemDTO: CreateDictItemDTO) {
+    const dict = await this.dictModel.findOneBy({ id: createDictItemDTO.dictId });
+    if (!dict) {
+      throw new Error('指定的字典不存在');
+    }
+    const item = new DictItem();
+    item.name = createDictItemDTO.name;
+    item.title = createDictItemDTO.title;
+    item.dict = dict;
+    return this.dictItemModel.save(item);
+  }
+
+  // 更新字典项
+  async updateDictItem(id: number, updateDictItemDTO: UpdateDictItemDTO) {
+    await this.dictItemModel.update(id, updateDictItemDTO);
+    return this.dictItemModel.findOneBy({ id });
+  }
+
+  // 删除字典项
+  async deleteDictItem(id: number) {
+    const result = await this.dictItemModel.delete(id);
+    return result.affected > 0;
+  }
+}