diff --git a/visa/visa-api/src/main/java/cn/axzo/nanopart/visa/api/changerecord/ChangeRecordApi.java b/visa/visa-api/src/main/java/cn/axzo/nanopart/visa/api/changerecord/ChangeRecordApi.java
index 08c52b37..c845bd4f 100644
--- a/visa/visa-api/src/main/java/cn/axzo/nanopart/visa/api/changerecord/ChangeRecordApi.java
+++ b/visa/visa-api/src/main/java/cn/axzo/nanopart/visa/api/changerecord/ChangeRecordApi.java
@@ -124,16 +124,19 @@ public interface ChangeRecordApi {
 
     /**
      * IM 变洽签群，“重新发起”按钮
+     *
      * @return
      */
     @PostMapping("/api/visa/change/reDecision")
     ApiResult<Void> reDecisionChangeRecord(@Validated @RequestBody ChangeRecordButtonOperationReq req);
 
     /**
-     * IM 变洽签全，“发起执行”按钮
+     * IM 变洽签群，“发起执行”按钮
+     *
      * @param req
      * @return
      */
     @PostMapping("/api/visa/change/execute")
     ApiResult<Void> executeChangeRecord(@Validated @RequestBody ChangeRecordButtonOperationReq req);
+
 }
diff --git a/visa/visa-api/src/main/java/cn/axzo/nanopart/visa/api/changerecord/ChangeRecordRelationApi.java b/visa/visa-api/src/main/java/cn/axzo/nanopart/visa/api/changerecord/ChangeRecordRelationApi.java
index 33b2d56e..e6f09f10 100644
--- a/visa/visa-api/src/main/java/cn/axzo/nanopart/visa/api/changerecord/ChangeRecordRelationApi.java
+++ b/visa/visa-api/src/main/java/cn/axzo/nanopart/visa/api/changerecord/ChangeRecordRelationApi.java
@@ -1,10 +1,11 @@
 package cn.axzo.nanopart.visa.api.changerecord;
 
 import cn.axzo.framework.domain.web.result.ApiResult;
+import cn.axzo.nanopart.visa.api.request.ChangeRecordAppendAttachReq;
+import cn.axzo.nanopart.visa.api.request.ImGroupOperationReq;
 import cn.axzo.nanopart.visa.api.request.ImGroupTipsQueryReq;
 import cn.axzo.nanopart.visa.api.request.VisaRelationReq;
 import cn.axzo.nanopart.visa.api.response.ImGroupTipsResp;
-import cn.axzo.nanopart.visa.api.request.ImGroupOperationReq;
 import cn.axzo.nanopart.visa.api.response.VisaRelationResp;
 import org.springframework.cloud.openfeign.FeignClient;
 import org.springframework.validation.annotation.Validated;
@@ -30,4 +31,12 @@ public interface ChangeRecordRelationApi {
     @PostMapping("/api/visa/relation/im/tips")
     ApiResult<ImGroupTipsResp> queryImGroupTips(@Validated @RequestBody ImGroupTipsQueryReq req);
 
+    /**
+     * 变洽签追加附件
+     *
+     * @param req
+     * @return
+     */
+    @PostMapping("/api/visa/relation/attach/append")
+    ApiResult<Void> appendAttachment(@Validated @RequestBody ChangeRecordAppendAttachReq req);
 }
diff --git a/visa/visa-api/src/main/java/cn/axzo/nanopart/visa/api/request/ChangeRecordAppendAttachReq.java b/visa/visa-api/src/main/java/cn/axzo/nanopart/visa/api/request/ChangeRecordAppendAttachReq.java
new file mode 100644
index 00000000..5e82d694
--- /dev/null
+++ b/visa/visa-api/src/main/java/cn/axzo/nanopart/visa/api/request/ChangeRecordAppendAttachReq.java
@@ -0,0 +1,39 @@
+package cn.axzo.nanopart.visa.api.request;
+
+import cn.axzo.workflow.common.model.dto.UploadFieldDTO;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import javax.validation.constraints.NotNull;
+import java.util.List;
+
+/**
+ * 变洽签增加附件
+ *
+ * @author wangli
+ * @since 2025-02-08 14:19
+ */
+@Data
+@Builder
+@AllArgsConstructor
+@NoArgsConstructor
+public class ChangeRecordAppendAttachReq {
+
+    /**
+     * 变洽签主键 ID
+     */
+    @NotNull(message = "变洽签主键 ID")
+    private Long visaId;
+
+    /**
+     * 新增的附件
+     */
+    private List<UploadFieldDTO> attach;
+
+    private Long operatorPersonId;
+
+    private Long operatorOuId;
+
+}
diff --git a/visa/visa-server/src/main/java/cn/axzo/nanopart/visa/server/controller/ChangeRecordRelationController.java b/visa/visa-server/src/main/java/cn/axzo/nanopart/visa/server/controller/ChangeRecordRelationController.java
index 0e1bc9df..c298ba66 100644
--- a/visa/visa-server/src/main/java/cn/axzo/nanopart/visa/server/controller/ChangeRecordRelationController.java
+++ b/visa/visa-server/src/main/java/cn/axzo/nanopart/visa/server/controller/ChangeRecordRelationController.java
@@ -2,6 +2,7 @@ package cn.axzo.nanopart.visa.server.controller;
 
 import cn.axzo.framework.domain.web.result.ApiResult;
 import cn.axzo.nanopart.visa.api.changerecord.ChangeRecordRelationApi;
+import cn.axzo.nanopart.visa.api.request.ChangeRecordAppendAttachReq;
 import cn.axzo.nanopart.visa.api.request.ImGroupOperationReq;
 import cn.axzo.nanopart.visa.api.request.ImGroupTipsQueryReq;
 import cn.axzo.nanopart.visa.api.request.VisaRelationReq;
@@ -45,4 +46,10 @@ public class ChangeRecordRelationController implements ChangeRecordRelationApi {
     public ApiResult<ImGroupTipsResp> queryImGroupTips(ImGroupTipsQueryReq req) {
        return ApiResult.ok(changeRecordRelationService.queryImGroupTips(req));
     }
+
+    @Override
+    public ApiResult<Void> appendAttachment(ChangeRecordAppendAttachReq req) {
+        changeRecordRelationService.appendAttachment(req);
+        return ApiResult.ok();
+    }
 }
diff --git a/visa/visa-server/src/main/java/cn/axzo/nanopart/visa/server/rpc/WorkflowGateway.java b/visa/visa-server/src/main/java/cn/axzo/nanopart/visa/server/rpc/WorkflowGateway.java
index 587e4025..a97e148e 100644
--- a/visa/visa-server/src/main/java/cn/axzo/nanopart/visa/server/rpc/WorkflowGateway.java
+++ b/visa/visa-server/src/main/java/cn/axzo/nanopart/visa/server/rpc/WorkflowGateway.java
@@ -1,9 +1,9 @@
 package cn.axzo.nanopart.visa.server.rpc;
 
-import cn.axzo.pokonyan.util.RpcUtil;
 import cn.axzo.workflow.common.model.request.bpmn.process.BpmnProcessInstanceAbortDTO;
 import cn.axzo.workflow.common.model.request.bpmn.process.BpmnProcessInstanceCheckApproverDTO;
 import cn.axzo.workflow.common.model.request.bpmn.process.BpmnProcessInstanceCreateDTO;
+import cn.axzo.workflow.common.model.request.form.instance.FormVariablesUpdateDTO;
 import cn.axzo.workflow.starter.api.WorkflowCoreService;
 import cn.axzo.workflow.starter.api.WorkflowManageService;
 import cn.azxo.framework.common.logger.MethodAroundLog;
@@ -48,4 +48,8 @@ public class WorkflowGateway {
 
     }
 
+    @MethodAroundLog(target = "workflow-engine", source = "nanopart", value = "更新指定流程表单最后一次编辑的内容")
+    public Boolean updateInstanceFormData(FormVariablesUpdateDTO dto) {
+        return workflowCoreService.updateInstanceFormVariables(dto);
+    }
 }
diff --git a/visa/visa-server/src/main/java/cn/axzo/nanopart/visa/server/service/ChangeRecordRelationService.java b/visa/visa-server/src/main/java/cn/axzo/nanopart/visa/server/service/ChangeRecordRelationService.java
index bc2d79c3..25577540 100644
--- a/visa/visa-server/src/main/java/cn/axzo/nanopart/visa/server/service/ChangeRecordRelationService.java
+++ b/visa/visa-server/src/main/java/cn/axzo/nanopart/visa/server/service/ChangeRecordRelationService.java
@@ -1,6 +1,7 @@
 package cn.axzo.nanopart.visa.server.service;
 
 import cn.axzo.nanopart.visa.api.enums.VisaRelationFieldEnum;
+import cn.axzo.nanopart.visa.api.request.ChangeRecordAppendAttachReq;
 import cn.axzo.nanopart.visa.api.request.ImGroupOperationClearReq;
 import cn.axzo.nanopart.visa.api.request.ImGroupOperationReq;
 import cn.axzo.nanopart.visa.api.request.ImGroupTipsQueryReq;
@@ -33,6 +34,7 @@ public interface ChangeRecordRelationService extends IService<ChangeRecordRelati
     List<ChangeRecordRelation> findByVisaAndVarName(Long visaId, String varName);
 
     boolean deleteByVisaId(Long visaId, List<VisaRelationFieldEnum> relationTypes);
+
     /**
      * IM 群聊中，保存 IM 用户操作横条的人
      *
@@ -43,6 +45,7 @@ public interface ChangeRecordRelationService extends IService<ChangeRecordRelati
 
     /**
      * IM 群聊中，群主操作重新发起，清空所有人的操作信息
+     *
      * @param req
      * @return
      */
@@ -55,4 +58,11 @@ public interface ChangeRecordRelationService extends IService<ChangeRecordRelati
      * @return
      */
     ImGroupTipsResp queryImGroupTips(ImGroupTipsQueryReq req);
+
+    /**
+     * 追加附件
+     *
+     * @param req
+     */
+    void appendAttachment(ChangeRecordAppendAttachReq req);
 }
diff --git a/visa/visa-server/src/main/java/cn/axzo/nanopart/visa/server/service/impl/ChangeRecordRelationServiceImpl.java b/visa/visa-server/src/main/java/cn/axzo/nanopart/visa/server/service/impl/ChangeRecordRelationServiceImpl.java
index 0f40d43e..e2d445e7 100644
--- a/visa/visa-server/src/main/java/cn/axzo/nanopart/visa/server/service/impl/ChangeRecordRelationServiceImpl.java
+++ b/visa/visa-server/src/main/java/cn/axzo/nanopart/visa/server/service/impl/ChangeRecordRelationServiceImpl.java
@@ -11,6 +11,7 @@ import cn.axzo.nanopart.visa.api.enums.VisaButtonTypeEnum;
 import cn.axzo.nanopart.visa.api.enums.VisaRelationFieldEnum;
 import cn.axzo.nanopart.visa.api.enums.VisaRelationVarTypeEnum;
 import cn.axzo.nanopart.visa.api.enums.VisaStatusEnum;
+import cn.axzo.nanopart.visa.api.request.ChangeRecordAppendAttachReq;
 import cn.axzo.nanopart.visa.api.request.ImGroupOperationClearReq;
 import cn.axzo.nanopart.visa.api.request.ImGroupOperationReq;
 import cn.axzo.nanopart.visa.api.request.ImGroupTipsQueryReq;
@@ -23,8 +24,10 @@ import cn.axzo.nanopart.visa.server.dto.VisaRelationDto;
 import cn.axzo.nanopart.visa.server.mapper.ChangeRecordRelationDao;
 import cn.axzo.nanopart.visa.server.rpc.MsgCenterGateway;
 import cn.axzo.nanopart.visa.server.rpc.VisaProfileGateway;
+import cn.axzo.nanopart.visa.server.rpc.WorkflowGateway;
 import cn.axzo.nanopart.visa.server.service.ChangeRecordRelationService;
 import cn.axzo.nanopart.visa.server.service.ChangeRecordService;
+import cn.axzo.workflow.common.model.request.form.instance.FormVariablesUpdateDTO;
 import com.alibaba.fastjson.JSON;
 import com.alibaba.fastjson.JSONObject;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
@@ -33,6 +36,7 @@ import com.google.common.collect.Sets;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.commons.collections.CollectionUtils;
+import org.apache.groovy.util.Maps;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 import org.springframework.util.StringUtils;
@@ -43,9 +47,11 @@ import java.util.Map;
 import java.util.Objects;
 import java.util.stream.Collectors;
 
+import static cn.axzo.nanopart.visa.api.constant.VisaConstant.FORM_FIELD_ATTACH;
 import static cn.axzo.nanopart.visa.api.constant.VisaConstant.IM_GROUP_BIZ_INFO_VISA_ID;
 import static cn.axzo.nanopart.visa.api.constant.VisaConstant.IM_GROUP_OWNER_TIPS;
 import static cn.axzo.nanopart.visa.api.constant.VisaConstant.IM_GROUP_PARTICIPATE_TIPS;
+import static cn.axzo.workflow.common.enums.BpmnProcessInstanceResultEnum.PROCESSING;
 
 /**
  * @author xudawei
@@ -59,6 +65,7 @@ public class ChangeRecordRelationServiceImpl extends ServiceImpl<ChangeRecordRel
     private final ChangeRecordService changeRecordService;
     private final VisaProfileGateway visaProfileGateway;
     private final MsgCenterGateway msgCenterGateway;
+    private final WorkflowGateway workflowGateway;
 
     /**
      * 保存
@@ -286,4 +293,42 @@ public class ChangeRecordRelationServiceImpl extends ServiceImpl<ChangeRecordRel
         resp.setButtonList(buttons);
         return resp;
     }
+
+    @Override
+    @Transactional(rollbackFor = Exception.class)
+    public void appendAttachment(ChangeRecordAppendAttachReq req) {
+        ChangeRecord visa = changeRecordService.getById(req.getVisaId());
+        AssertUtil.isTrue(Objects.equals(VisaStatusEnum.APPROVING, visa.getStatus())
+                || Objects.equals(VisaStatusEnum.COMPLETED, visa.getStatus()), "当前单据状态下不允许操作");
+
+        AssertUtil.notNull(visa, "变洽签单据不存在");
+        List<ChangeRecordRelation> existsAttach = findByCondition(VisaRelationDto.builder()
+                .visaId(req.getVisaId())
+                .varName(VisaRelationFieldEnum.ATTACHMENT.name())
+                .build());
+        AssertUtil.isTrue(existsAttach.size() < 30, "已达到附件数量限制");
+        AssertUtil.isTrue(existsAttach.size() + req.getAttach().size() <= 30, "新增的附件数量超过限制");
+
+        List<ChangeRecordRelation> attach = req.getAttach().stream()
+                .map(item -> {
+                    ChangeRecordRelation changeRecordRelation = new ChangeRecordRelation();
+                    changeRecordRelation.setVisaId(req.getVisaId());
+                    changeRecordRelation.setVarName(VisaRelationFieldEnum.ATTACHMENT.name());
+                    changeRecordRelation.setVarType(VisaRelationVarTypeEnum.JSON.getType());
+                    changeRecordRelation.setContent(JSON.toJSONString(item));
+                    changeRecordRelation.setCreateBy(req.getOperatorPersonId());
+                    changeRecordRelation.setUpdateBy(req.getOperatorPersonId());
+                    return changeRecordRelation;
+                })
+                .collect(Collectors.toList());
+        saveBatch(attach);
+
+        if (Objects.equals(PROCESSING.getStatus(), visa.getApprovalStatus())) {
+            FormVariablesUpdateDTO formUpdateDto = new FormVariablesUpdateDTO();
+            formUpdateDto.setProcessInstanceId(visa.getApprovalId());
+            formUpdateDto.setFormVariables(Maps.of(FORM_FIELD_ATTACH, req.getAttach()));
+            workflowGateway.updateInstanceFormData(formUpdateDto);
+        }
+
+    }
 }