diff --git a/bonus-modules/bonus-material/src/main/java/com/bonus/material/basic/mapper/BmFileInfoMapper.java b/bonus-modules/bonus-material/src/main/java/com/bonus/material/basic/mapper/BmFileInfoMapper.java
index faab1237..5eb66b33 100644
--- a/bonus-modules/bonus-material/src/main/java/com/bonus/material/basic/mapper/BmFileInfoMapper.java
+++ b/bonus-modules/bonus-material/src/main/java/com/bonus/material/basic/mapper/BmFileInfoMapper.java
@@ -51,6 +51,14 @@ public interface BmFileInfoMapper {
      */
     int deleteBmFileInfoById(Long id);
 
+    /**
+     * 删除附件
+     *
+     * @param modelId 附件主键
+     * @return 结果
+     */
+    int deleteBmFileInfoByModelId(Long modelId);
+
     /**
      * 批量删除附件
 
diff --git a/bonus-modules/bonus-material/src/main/java/com/bonus/material/settlement/service/impl/SltAgreementReduceServiceImpl.java b/bonus-modules/bonus-material/src/main/java/com/bonus/material/settlement/service/impl/SltAgreementReduceServiceImpl.java
index 6d58873a..41feb1ad 100644
--- a/bonus-modules/bonus-material/src/main/java/com/bonus/material/settlement/service/impl/SltAgreementReduceServiceImpl.java
+++ b/bonus-modules/bonus-material/src/main/java/com/bonus/material/settlement/service/impl/SltAgreementReduceServiceImpl.java
@@ -152,7 +152,8 @@ public class SltAgreementReduceServiceImpl implements ISltAgreementReduceService
                 Long rs = sltAgreementRecudceMapper.updateReduce(sltAgreement);
                 Long id = sltAgreement.getId();
                 AtomicBoolean addFileInfoResult = new AtomicBoolean(false);
-
+                //删除之前的附件
+                bmFileInfoMapper.deleteBmFileInfoByModelId(id);
                 if(sltAgreement.getBmFileInfos()!=null){
                     sltAgreement.getBmFileInfos().forEach(bmFileInfo -> {
                         bmFileInfo.setModelId(id);
@@ -281,7 +282,6 @@ public class SltAgreementReduceServiceImpl implements ISltAgreementReduceService
                                 temp.add(
                                         current
                                 );
-
                             }
                         }
 
diff --git a/bonus-modules/bonus-material/src/main/resources/mapper/material/basic/BmFileInfoMapper.xml b/bonus-modules/bonus-material/src/main/resources/mapper/material/basic/BmFileInfoMapper.xml
index 43f78ba0..70b95d02 100644
--- a/bonus-modules/bonus-material/src/main/resources/mapper/material/basic/BmFileInfoMapper.xml
+++ b/bonus-modules/bonus-material/src/main/resources/mapper/material/basic/BmFileInfoMapper.xml
@@ -95,6 +95,10 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
         delete from bm_file_info where id = #{id}
     </delete>
 
+    <delete id="deleteBmFileInfoByModelId" parameterType="Long">
+        delete from bm_file_info where model_id = #{modelId}
+    </delete>
+
     <delete id="deleteBmFileInfoByIds" parameterType="String">
         delete from bm_file_info where id in 
         <foreach item="id" collection="array" open="(" separator="," close=")">