diff --git a/yudao-module-llm/yudao-module-llm-api/src/main/java/cn/iocoder/yudao/module/llm/enums/ErrorCodeConstants.java b/yudao-module-llm/yudao-module-llm-api/src/main/java/cn/iocoder/yudao/module/llm/enums/ErrorCodeConstants.java
index 5f0c2d393..a12d8e2ec 100644
--- a/yudao-module-llm/yudao-module-llm-api/src/main/java/cn/iocoder/yudao/module/llm/enums/ErrorCodeConstants.java
+++ b/yudao-module-llm/yudao-module-llm-api/src/main/java/cn/iocoder/yudao/module/llm/enums/ErrorCodeConstants.java
@@ -94,6 +94,7 @@ public interface ErrorCodeConstants {
     ErrorCode DATA_PROCESS_TASK_NAME_NOT_EXISTS = new ErrorCode(10038, "数据处理任务名称已存在");
     ErrorCode FINE_TUNING_TASK_NAME_NOT_EXISTS = new ErrorCode(10039, "模型调优任务名称已存在");
     ErrorCode LEARNING_RESOURCES_NAME_NOT_EXISTS = new ErrorCode(10040, "学习资源标题名称已存在");
+    ErrorCode KNOWLEDGE_BASE_NAME_NOT_EXISTS = new ErrorCode(10040, "知识库名称已存在");
 
 
 }
diff --git a/yudao-module-llm/yudao-module-llm-biz/src/main/java/cn/iocoder/yudao/module/llm/service/knowledgebase/KnowledgeBaseServiceImpl.java b/yudao-module-llm/yudao-module-llm-biz/src/main/java/cn/iocoder/yudao/module/llm/service/knowledgebase/KnowledgeBaseServiceImpl.java
index 15a6ed235..a9ee07f45 100644
--- a/yudao-module-llm/yudao-module-llm-biz/src/main/java/cn/iocoder/yudao/module/llm/service/knowledgebase/KnowledgeBaseServiceImpl.java
+++ b/yudao-module-llm/yudao-module-llm-biz/src/main/java/cn/iocoder/yudao/module/llm/service/knowledgebase/KnowledgeBaseServiceImpl.java
@@ -9,15 +9,18 @@ import cn.iocoder.yudao.module.llm.controller.admin.knowledgebase.vo.KnowledgeBa
 import cn.iocoder.yudao.module.llm.controller.admin.knowledgebase.vo.KnowledgeBaseSaveReqVO;
 import cn.iocoder.yudao.module.llm.controller.admin.knowledgedocuments.vo.KnowledgeDocumentsRespVO;
 import cn.iocoder.yudao.module.llm.controller.admin.knowledgedocuments.vo.KnowledgeDocumentsSaveReqVO;
+import cn.iocoder.yudao.module.llm.dal.dataobject.dataset.DatasetDO;
 import cn.iocoder.yudao.module.llm.dal.dataobject.knowledgebase.KnowledgeBaseDO;
 import cn.iocoder.yudao.module.llm.dal.dataobject.knowledgedocuments.KnowledgeDocumentsDO;
 import cn.iocoder.yudao.module.llm.dal.mysql.knowledgebase.KnowledgeBaseMapper;
 import cn.iocoder.yudao.module.llm.dal.mysql.knowledgedocuments.KnowledgeDocumentsMapper;
 import cn.iocoder.yudao.module.llm.service.async.AsyncKnowledgeBase;
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import org.springframework.stereotype.Service;
 import org.springframework.validation.annotation.Validated;
 
 import static cn.iocoder.yudao.framework.common.exception.util.ServiceExceptionUtil.exception;
+import static cn.iocoder.yudao.module.llm.enums.ErrorCodeConstants.DATASET_NAME_EXISTS;
 import static cn.iocoder.yudao.module.llm.enums.ErrorCodeConstants.KNOWLEDGE_BASE_NOT_EXISTS;
 
 import javax.annotation.Resource;
@@ -43,6 +46,7 @@ public class KnowledgeBaseServiceImpl implements KnowledgeBaseService {
 
     @Override
     public Long createKnowledgeBase(KnowledgeBaseSaveReqVO createReqVO) {
+        validateKnowledgeBaseNameExists(createReqVO);
         // 插入
         KnowledgeBaseDO knowledgeBase = BeanUtils.toBean(createReqVO, KnowledgeBaseDO.class);
         knowledgeBaseMapper.insert(knowledgeBase);
@@ -54,6 +58,7 @@ public class KnowledgeBaseServiceImpl implements KnowledgeBaseService {
     public void updateKnowledgeBase(KnowledgeBaseSaveReqVO updateReqVO) {
         // 校验存在
         validateKnowledgeBaseExists(updateReqVO.getId());
+        validateKnowledgeBaseNameExists(updateReqVO);
         // 更新
         KnowledgeBaseDO updateObj = BeanUtils.toBean(updateReqVO, KnowledgeBaseDO.class);
         knowledgeBaseMapper.updateById(updateObj);
@@ -107,6 +112,19 @@ public class KnowledgeBaseServiceImpl implements KnowledgeBaseService {
         }
     }
 
+    private void validateKnowledgeBaseNameExists(KnowledgeBaseSaveReqVO reqVO) {
+        LambdaQueryWrapper<KnowledgeBaseDO> wrapper = new LambdaQueryWrapper<KnowledgeBaseDO>()
+                .eq(KnowledgeBaseDO::getKnowledgeBaseName, reqVO.getKnowledgeBaseName());
+
+        if (reqVO.getId() != null){
+            wrapper.ne(KnowledgeBaseDO::getId, reqVO.getId());
+        }
+        List<KnowledgeBaseDO> knowledgeBaseDos = knowledgeBaseMapper.selectList(wrapper);
+        if (com.baomidou.mybatisplus.core.toolkit.CollectionUtils.isNotEmpty(knowledgeBaseDos)){
+            throw exception(KNOWLEDGE_BASE_NAME_NOT_EXISTS);
+        }
+    }
+
     @Override
     public KnowledgeBaseDO getKnowledgeBase(Long id) {
         return knowledgeBaseMapper.selectById(id);