diff --git a/core/src/main/java/net/rzdata/exception/RepeatDataException.java b/core/src/main/java/net/rzdata/exception/RepeatDataException.java
new file mode 100644
index 0000000..502ed07
--- /dev/null
+++ b/core/src/main/java/net/rzdata/exception/RepeatDataException.java
@@ -0,0 +1,18 @@
+package net.rzdata.exception;
+
+/**
+ * 数据重复异常
+ */
+public class RepeatDataException extends ClientException {
+
+    public static final String ERROR_CODE = "A0428";
+    public static final String ERROR_MESSAGE = "数据已存在";
+
+    public RepeatDataException() {
+        super(ERROR_CODE, ERROR_MESSAGE);
+    }
+
+    public RepeatDataException(String message) {
+        super(ERROR_CODE, message);
+    }
+}
diff --git a/service/system/src/main/java/net/rzdata/demo/dict/DictController.java b/service/system/src/main/java/net/rzdata/demo/dict/DictController.java
index 2abfb8b..e6d2ee3 100644
--- a/service/system/src/main/java/net/rzdata/demo/dict/DictController.java
+++ b/service/system/src/main/java/net/rzdata/demo/dict/DictController.java
@@ -1,11 +1,9 @@
 package net.rzdata.demo.dict;
 
-import net.rzdata.demo.dict.domain.AddDictTypeReq;
+import net.rzdata.demo.dict.domain.AddDictReq;
 import net.rzdata.demo.dict.domain.Dict;
-import net.rzdata.demo.dict.domain.UpdateDictReq;
 import net.rzdata.domain.Id;
 import org.springframework.web.bind.annotation.PostMapping;
-import org.springframework.web.bind.annotation.PutMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 
@@ -18,4 +16,15 @@ public class DictController {
     public DictController(DictService dictService) {
         this.dictService = dictService;
     }
+
+    @PostMapping()
+    public Id addDictData(AddDictReq req) {
+        Dict dict = req.into();
+        if (dict.getParentId() == null) {
+            dict.setParentId(Dict.ROOT.getId());
+            dict.setType(Dict.ROOT.getType());
+        }
+        dictService.addDict(dict);
+        return Id.of(dict.getId());
+    }
 }
diff --git a/service/system/src/main/java/net/rzdata/demo/dict/DictService.java b/service/system/src/main/java/net/rzdata/demo/dict/DictService.java
index 2f41fab..86d790f 100644
--- a/service/system/src/main/java/net/rzdata/demo/dict/DictService.java
+++ b/service/system/src/main/java/net/rzdata/demo/dict/DictService.java
@@ -1,10 +1,14 @@
 package net.rzdata.demo.dict;
 
 import net.rzdata.demo.dict.domain.Dict;
-import net.rzdata.demo.dict.mapper.DictMapper;
 import net.rzdata.demo.dict.mapper.DictRepository;
+import net.rzdata.exception.RepeatDataException;
 import org.springframework.stereotype.Service;
 
+import java.util.List;
+import java.util.Objects;
+import java.util.Optional;
+
 @Service
 public class DictService {
 
@@ -13,4 +17,23 @@ public class DictService {
     public DictService(DictRepository dictRepository) {
         this.dictRepository = dictRepository;
     }
+
+    protected void addDict(Dict dict) {
+        Optional<Dict> exist = this.getDictByTypeAndValue(dict.getType(), dict.getValue());
+        if (exist.isPresent()) {
+            throw new RepeatDataException(String.format("字典类型:%s, 值:%s 已存在", dict.getType(), dict.getValue()));
+        }
+        dictRepository.get().insert(dict);
+    }
+
+    protected List<Dict> getDictByType(String type) {
+        return dictRepository.findByTypeOrderBySortAsc(type);
+    }
+
+    private Optional<Dict> getDictByTypeAndValue(String type, String value) {
+        List<Dict> dictList = this.getDictByType(type);
+        return dictList.parallelStream()
+            .filter(d -> Objects.equals(d.getValue(), value))
+            .findAny();
+    }
 }
diff --git a/service/system/src/main/java/net/rzdata/demo/dict/domain/AddDictReq.java b/service/system/src/main/java/net/rzdata/demo/dict/domain/AddDictReq.java
new file mode 100644
index 0000000..594bc5e
--- /dev/null
+++ b/service/system/src/main/java/net/rzdata/demo/dict/domain/AddDictReq.java
@@ -0,0 +1,58 @@
+package net.rzdata.demo.dict.domain;
+
+import lombok.Getter;
+import lombok.Setter;
+import lombok.ToString;
+import net.rzdata.trait.IConverter;
+import net.rzdata.trait.IQuery;
+import org.mapstruct.Mapper;
+import org.mapstruct.Mapping;
+import org.mapstruct.factory.Mappers;
+
+@Getter
+@Setter
+@ToString
+public class AddDictReq implements IQuery<Dict> {
+
+    /**
+     * 字典标签
+     */
+    private String label;
+    /**
+     * 字典值
+     */
+    private String value;
+    /**
+     * 字典类型
+     */
+    private String type;
+    /**
+     * 父级ID
+     * 如果是顶级字典 则为0
+     */
+    private String parentId;
+    /**
+     * 排序
+     */
+    private Integer sort;
+    /**
+     * 是否禁用
+     */
+    private Boolean disabled;
+
+    @Override
+    public Dict into() {
+        return AddDictReqConverter.INSTANCE.convert(this);
+    }
+}
+
+@Mapper
+interface AddDictReqConverter extends IConverter<AddDictReq, Dict> {
+
+    AddDictReqConverter INSTANCE = Mappers.getMapper(AddDictReqConverter.class);
+
+    @Mapping(target = "id", ignore = true)
+    @Mapping(target = "children", ignore = true)
+    @Override
+    Dict convert(AddDictReq req);
+}
diff --git a/service/system/src/main/java/net/rzdata/demo/dict/mapper/DictRepository.java b/service/system/src/main/java/net/rzdata/demo/dict/mapper/DictRepository.java
index b8cbe79..4dbdf0b 100644
--- a/service/system/src/main/java/net/rzdata/demo/dict/mapper/DictRepository.java
+++ b/service/system/src/main/java/net/rzdata/demo/dict/mapper/DictRepository.java
@@ -1,13 +1,23 @@
 package net.rzdata.demo.dict.mapper;
 
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import net.rzdata.demo.dict.domain.Dict;
 import net.rzdata.demo.trait.BaseRepository;
 import org.springframework.stereotype.Repository;
 
+import java.util.List;
+
 @Repository
 public class DictRepository extends BaseRepository<Dict, DictMapper> {
 
     public DictRepository(DictMapper mapper) {
         super(mapper);
     }
+
+    public List<Dict> findByTypeOrderBySortAsc(String type) {
+        return this.get().selectList(new LambdaQueryWrapper<Dict>()
+            .eq(Dict::getType, type)
+            .orderByAsc(Dict::getSort)
+        );
+    }
 }
diff --git a/service/system/src/test/java/net/rzdata/demo/dict/DictServiceTest.java b/service/system/src/test/java/net/rzdata/demo/dict/DictServiceTest.java
index c45114a..27f03f6 100644
--- a/service/system/src/test/java/net/rzdata/demo/dict/DictServiceTest.java
+++ b/service/system/src/test/java/net/rzdata/demo/dict/DictServiceTest.java
@@ -9,4 +9,12 @@ class DictServiceTest {
 
     @Resource
     private transient DictService dictService;
+
+    @Test
+    void addDict() {
+    }
+
+    @Test
+    void getDictByType() {
+    }
 }