diff --git a/zt-module-base/zt-module-base-api/src/main/java/com/zt/plat/module/base/enums/ErrorCodeConstants.java b/zt-module-base/zt-module-base-api/src/main/java/com/zt/plat/module/base/enums/ErrorCodeConstants.java
index 3e97983d..64186da1 100644
--- a/zt-module-base/zt-module-base-api/src/main/java/com/zt/plat/module/base/enums/ErrorCodeConstants.java
+++ b/zt-module-base/zt-module-base-api/src/main/java/com/zt/plat/module/base/enums/ErrorCodeConstants.java
@@ -47,6 +47,7 @@ public interface ErrorCodeConstants {
     ErrorCode MATERIAL_PROPERTIES_NOT_EXISTS = new ErrorCode(1_027_101_001, "物料属性不存在");
     ErrorCode MATERIAL_HAS_PROPERTIES_NOT_EXISTS = new ErrorCode(1_027_101_002, "物料持有属性不存在");
     ErrorCode MATERIAL_CLASSES_NOT_EXISTS = new ErrorCode(1_027_101_003, "物料分类不存在");
+    ErrorCode DEPARTMENT_MATERIAL_EXISTS = new ErrorCode(1_027_101_004, "组织物料已存在");
     ErrorCode DEPARTMENT_MATERIAL_NOT_EXISTS = new ErrorCode(1_027_101_004, "组织物料不存在");
     ErrorCode MATERIAL_HAS_CLASSES_NOT_EXISTS = new ErrorCode(1_027_101_004, "物料持有属性不存在");
     ErrorCode MATERIAL_HAS_PROPERTIES_CODE_DUPLICATE = new ErrorCode(1_027_101_106, "同一物料下该属性编码已存在");
diff --git a/zt-module-base/zt-module-base-server/src/main/java/com/zt/plat/module/base/dal/dao/departmentmaterial/DepartmentMaterialMapper.java b/zt-module-base/zt-module-base-server/src/main/java/com/zt/plat/module/base/dal/dao/departmentmaterial/DepartmentMaterialMapper.java
index 848aa797..5f9bdcde 100644
--- a/zt-module-base/zt-module-base-server/src/main/java/com/zt/plat/module/base/dal/dao/departmentmaterial/DepartmentMaterialMapper.java
+++ b/zt-module-base/zt-module-base-server/src/main/java/com/zt/plat/module/base/dal/dao/departmentmaterial/DepartmentMaterialMapper.java
@@ -31,4 +31,13 @@ public interface DepartmentMaterialMapper extends BaseMapperX<DepartmentMaterial
                 .orderByDesc(DepartmentMaterialDO::getId));
     }
 
+    default Long countExist(DepartmentMaterialDO reqVO) {
+        return selectCount(new LambdaQueryWrapperX<DepartmentMaterialDO>()
+                .eqIfPresent(DepartmentMaterialDO::getInfomationId, reqVO.getInfomationId())
+                .eqIfPresent(DepartmentMaterialDO::getClassesId, reqVO.getClassesId())
+                .eqIfPresent(DepartmentMaterialDO::getDeptId, reqVO.getDeptId())
+                .eqIfPresent(DepartmentMaterialDO::getDictionaryDataValue, reqVO.getDictionaryDataValue())
+                .neIfPresent(DepartmentMaterialDO::getId,reqVO.getId())); // 更新时判断要排除自身
+    }
+
 }
\ No newline at end of file
diff --git a/zt-module-base/zt-module-base-server/src/main/java/com/zt/plat/module/base/service/departmentmaterial/DepartmentMaterialServiceImpl.java b/zt-module-base/zt-module-base-server/src/main/java/com/zt/plat/module/base/service/departmentmaterial/DepartmentMaterialServiceImpl.java
index e1af3443..f0b767d8 100644
--- a/zt-module-base/zt-module-base-server/src/main/java/com/zt/plat/module/base/service/departmentmaterial/DepartmentMaterialServiceImpl.java
+++ b/zt-module-base/zt-module-base-server/src/main/java/com/zt/plat/module/base/service/departmentmaterial/DepartmentMaterialServiceImpl.java
@@ -9,6 +9,7 @@ import com.zt.plat.module.base.dal.dataobject.materialproperties.MaterialPropert
 import com.zt.plat.module.base.service.masterdatasync.support.MasterDataPropertyDefinition;
 import jakarta.annotation.Resource;
 import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
 import org.springframework.validation.annotation.Validated;
 
 import java.util.*;
@@ -69,6 +70,7 @@ public class DepartmentMaterialServiceImpl implements DepartmentMaterialService
     public DepartmentMaterialRespVO createDepartmentMaterial(DepartmentMaterialSaveReqVO createReqVO) {
         // 插入
         DepartmentMaterialDO departmentMaterial = BeanUtils.toBean(createReqVO, DepartmentMaterialDO.class);
+        validateNotExists(departmentMaterial); // 简单验证不存在相同分类物料
         departmentMaterialMapper.insert(departmentMaterial);
         // 构造完整响应，方便前端直接刷新数据
         return CollUtil.getFirst(decorateDepartmentMaterials(Collections.singletonList(departmentMaterial)));
@@ -80,6 +82,7 @@ public class DepartmentMaterialServiceImpl implements DepartmentMaterialService
         validateDepartmentMaterialExists(updateReqVO.getId());
         // 更新
         DepartmentMaterialDO updateObj = BeanUtils.toBean(updateReqVO, DepartmentMaterialDO.class);
+        validateNotExists(updateObj); // 简单验证不存在重复相同分类物料
         departmentMaterialMapper.updateById(updateObj);
     }
 
@@ -106,6 +109,14 @@ public class DepartmentMaterialServiceImpl implements DepartmentMaterialService
         }
     }
 
+    public void validateNotExists(DepartmentMaterialDO departmentMaterial) {
+        Long cnt = departmentMaterialMapper.countExist(departmentMaterial);
+        if (cnt != null && cnt > 0) {
+            // 已存在未删除的同一条
+            throw exception(DEPARTMENT_MATERIAL_EXISTS);
+        }
+    }
+
     private void validateDepartmentMaterialExists(Long id) {
         if (departmentMaterialMapper.selectById(id) == null) {
             throw exception(DEPARTMENT_MATERIAL_NOT_EXISTS);