diff --git a/src/main/java/com/bonus/aqgqj/app/dao/SamplesManageAppDao.java b/src/main/java/com/bonus/aqgqj/app/dao/SamplesManageAppDao.java
index 3d99757..abb52f1 100644
--- a/src/main/java/com/bonus/aqgqj/app/dao/SamplesManageAppDao.java
+++ b/src/main/java/com/bonus/aqgqj/app/dao/SamplesManageAppDao.java
@@ -142,4 +142,11 @@ public interface SamplesManageAppDao {
 	 * @return
 	 */
     int getCountByDepartmentId(Integer departmentId, Integer customId);
+
+	/**
+	 * 根据id查询数据
+	 * @param id
+	 * @return
+	 */
+	int getCountById(Integer id);
 }
diff --git a/src/main/java/com/bonus/aqgqj/app/service/impl/SamplesManageAppServiceImpl.java b/src/main/java/com/bonus/aqgqj/app/service/impl/SamplesManageAppServiceImpl.java
index 71e6771..e434e43 100644
--- a/src/main/java/com/bonus/aqgqj/app/service/impl/SamplesManageAppServiceImpl.java
+++ b/src/main/java/com/bonus/aqgqj/app/service/impl/SamplesManageAppServiceImpl.java
@@ -227,6 +227,11 @@ public class SamplesManageAppServiceImpl implements SamplesManageAppService {
 			Integer userId = Integer.parseInt(UserUtil.getLoginUser().getId().toString());
 			data.setUpdateBy(userId);
 			//删除详情
+			//查询是否为最后一条数据
+			int count = samplesManageAppDao.getCountById(data.getId());
+			if (count<=1){
+				return ServerResponse.createBySuccessMsg("不可删除，请至少保留一条数据");
+			}
 			int res = samplesManageAppDao.delSamplesDetailsList(data);
 			if (res > 0) {
 				return ServerResponse.createBySuccessMsg("删除成功");
diff --git a/src/main/resources/mappers/app/SamplesManageAppMapper.xml b/src/main/resources/mappers/app/SamplesManageAppMapper.xml
index 3ffa813..d436477 100644
--- a/src/main/resources/mappers/app/SamplesManageAppMapper.xml
+++ b/src/main/resources/mappers/app/SamplesManageAppMapper.xml
@@ -231,4 +231,9 @@
 		  AND p_id = #{customId}
 		  AND id = #{departmentId}
 	</select>
+	<select id="getCountById" resultType="java.lang.Integer">
+		SELECT COUNT(*)
+		FROM tb_sample_device
+		WHERE sample_id IN (SELECT tsd.sample_id FROM tb_sample_device tsd WHERE tsd.id = #{id})
+	</select>
 </mapper>
\ No newline at end of file