diff --git a/src/main/java/cn/palmte/work/service/AccountService.java b/src/main/java/cn/palmte/work/service/AccountService.java
index 959b8f7..4e63ac6 100644
--- a/src/main/java/cn/palmte/work/service/AccountService.java
+++ b/src/main/java/cn/palmte/work/service/AccountService.java
@@ -458,7 +458,7 @@ public class AccountService {
             return new ArrayList<>();
         }
         String sql = "select u.id as id from sys_user_role ur left join sys_user u on u.id=ur.user_id where ur.role_id in (?)";
-        String ids = roleIds.stream().collect(Collectors.joining());
+        String ids = String.join("", roleIds);
         List<Record> records = pagination.find(sql, ids);
         if (records == null || records.isEmpty()) {
             return new ArrayList<>();
@@ -466,7 +466,10 @@ public class AccountService {
 
         List<String> userIds = new ArrayList<>(roleIds.size());
         for (Record record : records) {
-            userIds.add(record.getInt("id") + "");
+            Integer id = record.getInt("id");
+            if (id != null) {
+                userIds.add(id.toString());
+            }
         }
         return userIds;
     }
diff --git a/src/main/java/cn/palmte/work/service/ActListenerService.java b/src/main/java/cn/palmte/work/service/ActListenerService.java
index 98be86e..893437e 100644
--- a/src/main/java/cn/palmte/work/service/ActListenerService.java
+++ b/src/main/java/cn/palmte/work/service/ActListenerService.java
@@ -1,6 +1,8 @@
 package cn.palmte.work.service;
 
 
+import cn.palmte.work.config.activiti.ActConstant;
+import cn.palmte.work.model.ActTaskDef;
 import cn.palmte.work.model.Admin;
 import cn.palmte.work.model.AdminRepository;
 import cn.palmte.work.utils.ActUtil;
@@ -55,8 +57,9 @@ public class ActListenerService {
 
         ProcessInstance processInstance = runtimeService.createProcessInstanceQuery().processInstanceId(procInsId).singleResult();
         logger.info("addCandidateUsers : {}, taskName:{}, hasProcIns:{}", candidateUsers, delegateTask.getName(), processInstance != null);
+
         if (actUtil.isProjectProcessIns(processInstance)) {
-            updateProjectApprover(candidateUsers, processInstance);
+            updateProjectApprover(candidateUsers, processInstance, procDefId, taskDefKey);
         }
 
         delegateTask.addCandidateUsers(candidateUsers);
@@ -87,13 +90,15 @@ public class ActListenerService {
      * @param candidateUsers
      * @param processInstance
      */
-    private void updateProjectApprover(List<String> candidateUsers, ProcessInstance processInstance) {
+    private void updateProjectApprover(List<String> candidateUsers, ProcessInstance processInstance, String procDefId, String taskDefKey) {
         String businessKey = processInstance.getBusinessKey();
         logger.info("businessKey : {}", businessKey);
+        ActTaskDef actTaskDef = actTaskDefService.findFirstByProcDefIdAndTaskKey(procDefId, taskDefKey);
 
         try {
             int adminId = 0;
-            if (!candidateUsers.isEmpty()) {
+            if (!candidateUsers.isEmpty() && actTaskDef!=null && actTaskDef.getTaskIndex() != ActConstant.TASK_INDEX_FIRST_USER_TASK) {
+                //回退到发起节点 审批人设置为空
                 for (String id : candidateUsers) {
                     Admin one = adminRepository.findOne(Integer.parseInt(id));
                     if (!one.isDeleted() && one.getEnabled() == 1) {
@@ -103,6 +108,7 @@ public class ActListenerService {
                     }
                 }
             }
+
             projectInstanceService.updateApprover(Integer.parseInt(businessKey), adminId);
         } catch (Exception e) {
             logger.error("", e);
diff --git a/src/main/java/cn/palmte/work/utils/ActUtil.java b/src/main/java/cn/palmte/work/utils/ActUtil.java
index b54b9cc..f07af08 100644
--- a/src/main/java/cn/palmte/work/utils/ActUtil.java
+++ b/src/main/java/cn/palmte/work/utils/ActUtil.java
@@ -204,6 +204,9 @@ public class ActUtil {
         for (IdentityLink identityLink : identityLinkList) {
             if ("assignee".equals(identityLink.getType()) || "candidate".equals(identityLink.getType())) {
                 String assigneeUserId = identityLink.getUserId();
+                if (StrKit.isBlank(assigneeUserId) || "null".equals(assigneeUserId)) {
+                    continue;
+                }
                 namesBuilder.append(accountService.getNameById(Integer.parseInt(assigneeUserId)));
                 namesBuilder.append(",");
             }
diff --git a/src/main/resources/templates/admin/project_approve.ftl b/src/main/resources/templates/admin/project_approve.ftl
index 949faeb..c455644 100644
--- a/src/main/resources/templates/admin/project_approve.ftl
+++ b/src/main/resources/templates/admin/project_approve.ftl
@@ -1872,7 +1872,7 @@
                     <button type="button" class="am-btn am-btn-warning am-btn-xs" onclick="javascript:history.go(-1);">
                         返回上一级
                     </button>
-                    <#if project.creatorId!=project.approveId && adminId==project.approveId>
+                    <#if adminId==project.approveId>
                     <button type="submit" class="am-btn am-btn-primary am-btn-xs" id="saveFinal">审核</button>
                     </#if>
                 </div>
diff --git a/src/main/resources/templates/admin/project_list.ftl b/src/main/resources/templates/admin/project_list.ftl
index f92cd05..75bf09d 100644
--- a/src/main/resources/templates/admin/project_list.ftl
+++ b/src/main/resources/templates/admin/project_list.ftl
@@ -271,7 +271,7 @@
                                             </button>-->
 
 
-                                            <#if list.creatorId!=list.approveId && adminId==list.approveId>
+                                            <#if adminId==list.approveId>
                                                 <button type="button"
                                                         class="am-btn am-btn-default am-btn-xs am-text-secondary"
                                                         onclick="location.href='${base}/project/approve?listFrom=list&id=${list.id}'"><span