diff --git a/pmapi/src/main/java/com/ningdatech/pmapi/projectlib/handle/ConstructionPlanReviewHandle.java b/pmapi/src/main/java/com/ningdatech/pmapi/projectlib/handle/ConstructionPlanReviewHandle.java
index fe2f333..27ef385 100644
--- a/pmapi/src/main/java/com/ningdatech/pmapi/projectlib/handle/ConstructionPlanReviewHandle.java
+++ b/pmapi/src/main/java/com/ningdatech/pmapi/projectlib/handle/ConstructionPlanReviewHandle.java
@@ -64,23 +64,20 @@ public class ConstructionPlanReviewHandle extends AbstractProcessBusinessHandle
         ProcessProgressVo instanceDetail = null;
         // 未找到当前版本项目的建设方案审核流程且当前项目版本号大于1(是被驳回重新申报的项目)
         if (Objects.isNull(projectInst)) {
-            if (project.getVersion() > CommonConst.VERSION_ONE){
+            if (project.getVersion() > CommonConst.VERSION_ONE ){
                 // 获取上个版本的信息
-                instanceDetail = projectVersionUtil.getPreVerProcessInfo(projectId);
-                if (Objects.isNull(instanceDetail)){
-                    throw new BizException("未获取到历史版本的流程详情!");
-                }
-            }else {
-                // 版本号为1
-                processDetailVO.setStepStatus(StepStatusEnum.NOT_START);
-                processDetailVO.setProcessName(CommonConst.CONSTRUCTION_PLAN_REVIEW);
-                processSchedule.add(processDetailVO);
-                return;
+                instanceDetail = projectVersionUtil.getPreVerProcessInfo(projectId,InstTypeEnum.CONSTRUCTION_PLAN_REVIEW);
             }
         }else {
             String instCode = projectInst.getInstCode();
             instanceDetail = processInstanceService.getProgressInstanceDetail(null, instCode);
         }
+        if (Objects.isNull(instanceDetail)){
+            processDetailVO.setStepStatus(StepStatusEnum.NOT_START);
+            processDetailVO.setProcessName(CommonConst.CONSTRUCTION_PLAN_REVIEW);
+            processSchedule.add(processDetailVO);
+            return;
+        }
         String status = instanceDetail.getStatus();
         if (ProcessStatusEnum.UNDER_REVIEW.getDesc().equals(status)){
             processDetailVO.setStepStatus(StepStatusEnum.ON_GOING);
diff --git a/pmapi/src/main/java/com/ningdatech/pmapi/projectlib/handle/PreliminaryPreviewHandle.java b/pmapi/src/main/java/com/ningdatech/pmapi/projectlib/handle/PreliminaryPreviewHandle.java
index c0dd713..95a8fd6 100644
--- a/pmapi/src/main/java/com/ningdatech/pmapi/projectlib/handle/PreliminaryPreviewHandle.java
+++ b/pmapi/src/main/java/com/ningdatech/pmapi/projectlib/handle/PreliminaryPreviewHandle.java
@@ -68,21 +68,18 @@ public class PreliminaryPreviewHandle extends AbstractProcessBusinessHandle {
         if (Objects.isNull(projectInst)) {
             if (project.getVersion() > CommonConst.VERSION_ONE){
                 // 获取上个版本的信息
-                instanceDetail = projectVersionUtil.getPreVerProcessInfo(projectId);
-                if (Objects.isNull(instanceDetail)){
-                    throw new BizException("未获取到历史版本的流程详情!");
-                }
-            }else {
-                // 版本号为1
-                processDetailVO.setStepStatus(StepStatusEnum.NOT_START);
-                processDetailVO.setProcessName(CommonConst.PRELIMINARY_PREVIEW);
-                processSchedule.add(processDetailVO);
-                return;
+                instanceDetail = projectVersionUtil.getPreVerProcessInfo(projectId,InstTypeEnum.PRELIMINARY_PREVIEW);
             }
         }else {
             String instCode = projectInst.getInstCode();
             instanceDetail = processInstanceService.getProgressInstanceDetail(null, instCode);
         }
+        if (Objects.isNull(instanceDetail)){
+            processDetailVO.setStepStatus(StepStatusEnum.NOT_START);
+            processDetailVO.setProcessName(CommonConst.PRELIMINARY_PREVIEW);
+            processSchedule.add(processDetailVO);
+            return;
+        }
         String status = instanceDetail.getStatus();
         if (ProcessStatusEnum.UNDER_REVIEW.getDesc().equals(status)){
             processDetailVO.setStepStatus(StepStatusEnum.ON_GOING);
diff --git a/pmapi/src/main/java/com/ningdatech/pmapi/projectlib/handle/UnitInnerAuditHandle.java b/pmapi/src/main/java/com/ningdatech/pmapi/projectlib/handle/UnitInnerAuditHandle.java
index 344d0a5..1057e4a 100644
--- a/pmapi/src/main/java/com/ningdatech/pmapi/projectlib/handle/UnitInnerAuditHandle.java
+++ b/pmapi/src/main/java/com/ningdatech/pmapi/projectlib/handle/UnitInnerAuditHandle.java
@@ -4,6 +4,7 @@ import java.time.LocalDateTime;
 import java.util.List;
 import java.util.Map;
 import java.util.Objects;
+import java.util.stream.Collectors;
 
 import cn.hutool.core.collection.CollUtil;
 import com.baomidou.mybatisplus.core.toolkit.Wrappers;
@@ -71,7 +72,7 @@ public class UnitInnerAuditHandle extends AbstractProcessBusinessHandle {
         if (Objects.isNull(projectInst)) {
             if (project.getVersion() > CommonConst.VERSION_ONE){
                 // 获取上个版本的信息
-                instanceDetail = projectVersionUtil.getPreVerProcessInfo(projectId);
+                instanceDetail = projectVersionUtil.getPreVerProcessInfo(projectId, InstTypeEnum.UNIT_INNER_AUDIT);
             }
         }else {
             String instCode = projectInst.getInstCode();
diff --git a/pmapi/src/main/java/com/ningdatech/pmapi/projectlib/utils/ProjectVersionUtil.java b/pmapi/src/main/java/com/ningdatech/pmapi/projectlib/utils/ProjectVersionUtil.java
index 92532af..faa55cb 100644
--- a/pmapi/src/main/java/com/ningdatech/pmapi/projectlib/utils/ProjectVersionUtil.java
+++ b/pmapi/src/main/java/com/ningdatech/pmapi/projectlib/utils/ProjectVersionUtil.java
@@ -1,9 +1,14 @@
 package com.ningdatech.pmapi.projectlib.utils;
 
+import cn.hutool.core.collection.CollUtil;
 import com.baomidou.mybatisplus.core.toolkit.Wrappers;
 import com.ningdatech.basic.exception.BizException;
+import com.ningdatech.basic.util.CollUtils;
 import com.ningdatech.pmapi.common.constant.CommonConst;
+import com.ningdatech.pmapi.projectlib.enumeration.InstTypeEnum;
 import com.ningdatech.pmapi.projectlib.model.entity.Project;
+import com.ningdatech.pmapi.projectlib.model.entity.ProjectInst;
+import com.ningdatech.pmapi.projectlib.service.IProjectInstService;
 import com.ningdatech.pmapi.projectlib.service.IProjectService;
 import com.wflow.workflow.bean.vo.ProcessProgressVo;
 import com.wflow.workflow.service.ProcessInstanceService;
@@ -13,8 +18,11 @@ import lombok.extern.slf4j.Slf4j;
 import org.apache.commons.lang3.StringUtils;
 import org.springframework.stereotype.Component;
 
+import java.util.Collection;
+import java.util.Collections;
 import java.util.List;
 import java.util.Objects;
+import java.util.stream.Collectors;
 
 /**
  * 根据项目版本获取流程详情工具类
@@ -29,13 +37,14 @@ public class ProjectVersionUtil {
 
     private final IProjectService projectService;
     private final ProcessInstanceService processInstanceService;
+    private final IProjectInstService projectInstService;
 
     /**
      * 根据最新的项目ID获取临近项目版本的审核记录信息
      * @param projectId
      * @return
      */
-    public ProcessProgressVo getPreVerProcessInfo(Long projectId){
+    public ProcessProgressVo getPreVerProcessInfo(Long projectId, InstTypeEnum instTypeEnum){
         Project project = projectService.getById(projectId);
         if (Objects.isNull(project)){
             throw new BizException("当前项目不存在!");
@@ -46,22 +55,28 @@ public class ProjectVersionUtil {
         }
         // 获取相同项目编号的项目
         List<Project> projectList = projectService.list(Wrappers.lambdaQuery(Project.class)
-                .eq(Project::getProjectCode, projectCode)
-                .orderByDesc(Project::getVersion));
+                .eq(Project::getProjectCode, projectCode));
         if (projectList.size() < CommonConst.VERSION_SIZE){
             throw new BizException("未发现该项目的历史版本!");
         }
         // 获取上个版本的项目
-        int index = projectList.size() - CommonConst.VERSION_SIZE;
+        int index = projectList.size() - 1;
         ProcessProgressVo instanceDetail = null;
         while (index > 0){
             index = index - 1;
             Project preProject = projectList.get(index);
-            // 获取上个版本的项目关联的流程实例ID
-            String preInstCode = preProject.getInstCode();
-            instanceDetail = processInstanceService.getProgressInstanceDetail(null, preInstCode);
-            if (Objects.nonNull(instanceDetail)){
-                return instanceDetail;
+            // 从项目流程实例关联表中查出实例详情
+            List<ProjectInst> projectInstList = projectInstService.list(Wrappers.lambdaQuery(ProjectInst.class)
+                    .eq(ProjectInst::getProjectId, preProject.getId())
+                    .eq(ProjectInst::getInstType,instTypeEnum.getCode()));
+            if (CollUtil.isNotEmpty(projectInstList)) {
+                // 获取最新一个对应审核类型的项目关联实例
+                ProjectInst projectInst = projectInstList.get(projectInstList.size() - 1);
+                // 获取流程详情
+                instanceDetail = processInstanceService.getProgressInstanceDetail(null, projectInst.getInstCode());
+                if (Objects.nonNull(instanceDetail)){
+                    return instanceDetail;
+                }
             }
         }
         return null;