diff --git a/workflow-engine-core/src/main/java/cn/axzo/workflow/core/version/GetSpecifiedVersionBeanUtils.java b/workflow-engine-core/src/main/java/cn/axzo/workflow/core/version/MultiVersionBeanUtils.java
similarity index 51%
rename from workflow-engine-core/src/main/java/cn/axzo/workflow/core/version/GetSpecifiedVersionBeanUtils.java
rename to workflow-engine-core/src/main/java/cn/axzo/workflow/core/version/MultiVersionBeanUtils.java
index e2c938430..69e0de189 100644
--- a/workflow-engine-core/src/main/java/cn/axzo/workflow/core/version/GetSpecifiedVersionBeanUtils.java
+++ b/workflow-engine-core/src/main/java/cn/axzo/workflow/core/version/MultiVersionBeanUtils.java
@@ -10,17 +10,36 @@ import java.util.List;
 import java.util.Map;
 import java.util.stream.Collectors;
 
-public class GetSpecifiedVersionBeanUtils {
-    public static <T extends Versioned> T getSpecialVersionBean(Class<T> clazz, String version) {
+import static cn.axzo.workflow.core.version.Versioned.UNKNOWN_VERSION;
+
+public class MultiVersionBeanUtils {
+
+    /**
+     * 获取支持指定版本的bean
+     *
+     * @param clazz   类型
+     * @param version 版本号
+     * @param <T>
+     * @return
+     */
+    public static <T extends Versioned> T getSpecifiedVersionBean(Class<T> clazz, String version) {
         Map<String, T> beans = SpringContentUtils.getBeansOfType(clazz);
         if (CollectionUtils.isEmpty(beans)) {
             throw new NullPointerException("no beans of type " + clazz.getName());
         }
         if (StringUtils.isEmpty(version)) {
-            //todo 版本为空，需要一个默认处理类？？
+            T t = beans.values().stream().filter(bean -> bean.getVersion() == null).findFirst().orElse(null);
+            if (t != null) {
+                return t;
+            }
+            throw new IllegalArgumentException("no default version bean found for version: " + version);
         }
         //根据版本号排序
-        List<T> sortedList = beans.values().stream().sorted().collect(Collectors.toList());
+        List<T> sortedList = beans.values().stream().sorted((o1, o2) -> {
+            DefaultArtifactVersion version1 = o1.getVersion() == null ? UNKNOWN_VERSION : o1.getVersion();
+            DefaultArtifactVersion version2 = o2.getVersion() == null ? UNKNOWN_VERSION : o2.getVersion();
+            return version1.compareTo(version2);
+        }).collect(Collectors.toList());
         DefaultArtifactVersion targetVersion = new DefaultArtifactVersion(version);
         for (int i = sortedList.size() - 1; i >= 0; i--) {
             int flag = sortedList.get(i).getVersion().compareTo(targetVersion);
diff --git a/workflow-engine-core/src/main/java/cn/axzo/workflow/core/version/Versioned.java b/workflow-engine-core/src/main/java/cn/axzo/workflow/core/version/Versioned.java
index be73a4aa6..b024b21d3 100644
--- a/workflow-engine-core/src/main/java/cn/axzo/workflow/core/version/Versioned.java
+++ b/workflow-engine-core/src/main/java/cn/axzo/workflow/core/version/Versioned.java
@@ -5,4 +5,6 @@ import org.apache.maven.artifact.versioning.DefaultArtifactVersion;
 public interface Versioned {
 
     DefaultArtifactVersion getVersion();
+
+    DefaultArtifactVersion UNKNOWN_VERSION = new DefaultArtifactVersion("0.0.0");
 }
diff --git a/workflow-engine-server/src/main/java/cn/axzo/workflow/server/controller/listener/task/AutoOperatorEvent_101_Listener.java b/workflow-engine-server/src/main/java/cn/axzo/workflow/server/controller/listener/task/AutoOperatorEvent_101_Listener.java
index 91afe0f68..0396802a1 100644
--- a/workflow-engine-server/src/main/java/cn/axzo/workflow/server/controller/listener/task/AutoOperatorEvent_101_Listener.java
+++ b/workflow-engine-server/src/main/java/cn/axzo/workflow/server/controller/listener/task/AutoOperatorEvent_101_Listener.java
@@ -11,8 +11,8 @@ import cn.axzo.workflow.core.engine.operation.DeleteProcessInstanceOperation;
 import cn.axzo.workflow.core.listener.AbstractBpmnEventListener;
 import cn.axzo.workflow.core.listener.BpmnTaskEventListener;
 import cn.axzo.workflow.core.service.ExtAxHiTaskInstService;
-import cn.axzo.workflow.core.version.GetSpecifiedVersionBeanUtils;
-import cn.axzo.workflow.server.controller.listener.task.service.CheckApproveService;
+import cn.axzo.workflow.core.version.MultiVersionBeanUtils;
+import cn.axzo.workflow.server.controller.listener.task.service.CheckApproverService;
 import cn.hutool.json.JSONUtil;
 import lombok.AllArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
@@ -92,8 +92,8 @@ public class AutoOperatorEvent_101_Listener extends AbstractBpmnEventListener<Ta
         if (approvalTypeEnumOpt.isPresent() && approvalTypeEnumOpt.get() == AutoApprovalTypeEnum.CONTINUOUS_NODES_AUTO_APPROVAL) {
             Object versionVar = delegateTask.getVariable(WORKFLOW_ENGINE_VERSION);
             String version = versionVar == null ? null : String.valueOf(versionVar);
-            CheckApproveService checkApproveService = GetSpecifiedVersionBeanUtils.getSpecialVersionBean(CheckApproveService.class, version);
-            boolean exists = checkApproveService.checkApproverExists(delegateTask, userTask, mainProcess, getContext());
+            CheckApproverService checkApproverService = MultiVersionBeanUtils.getSpecifiedVersionBean(CheckApproverService.class, version);
+            boolean exists = checkApproverService.checkApproverExists(delegateTask, userTask, mainProcess, getContext());
             log.info("是否需要自动过程判断 exists:{},processInstId:{},taskDefinitionKey:{}", exists, delegateTask.getProcessInstanceId(), delegateTask.getTaskDefinitionKey());
             if (exists) {
                 taskService.addComment(delegateTask.getId(), delegateTask.getProcessInstanceId(), COMMENT_TYPE_ADVICE,
diff --git a/workflow-engine-server/src/main/java/cn/axzo/workflow/server/controller/listener/task/service/CheckApproveService.java b/workflow-engine-server/src/main/java/cn/axzo/workflow/server/controller/listener/task/service/CheckApproverService.java
similarity index 88%
rename from workflow-engine-server/src/main/java/cn/axzo/workflow/server/controller/listener/task/service/CheckApproveService.java
rename to workflow-engine-server/src/main/java/cn/axzo/workflow/server/controller/listener/task/service/CheckApproverService.java
index e0c6a0562..1039057a7 100644
--- a/workflow-engine-server/src/main/java/cn/axzo/workflow/server/controller/listener/task/service/CheckApproveService.java
+++ b/workflow-engine-server/src/main/java/cn/axzo/workflow/server/controller/listener/task/service/CheckApproverService.java
@@ -6,7 +6,7 @@ import org.flowable.bpmn.model.Process;
 import org.flowable.bpmn.model.UserTask;
 import org.flowable.task.service.delegate.DelegateTask;
 
-public interface CheckApproveService extends Versioned {
+public interface CheckApproverService extends Versioned {
 
     boolean checkApproverExists(DelegateTask delegateTask, UserTask userTask, Process mainProcess, TaskOperationContext taskOperationContext);
 
diff --git a/workflow-engine-server/src/main/java/cn/axzo/workflow/server/controller/listener/task/service/impl/CheckApproverServiceImpl.java b/workflow-engine-server/src/main/java/cn/axzo/workflow/server/controller/listener/task/service/impl/CheckApproverServiceImpl.java
index 17d2a52b7..e9a9190d6 100644
--- a/workflow-engine-server/src/main/java/cn/axzo/workflow/server/controller/listener/task/service/impl/CheckApproverServiceImpl.java
+++ b/workflow-engine-server/src/main/java/cn/axzo/workflow/server/controller/listener/task/service/impl/CheckApproverServiceImpl.java
@@ -10,7 +10,7 @@ import cn.axzo.workflow.core.common.context.TaskOperationContext;
 import cn.axzo.workflow.core.common.utils.BpmnMetaParserHelper;
 import cn.axzo.workflow.core.repository.entity.ExtAxHiTaskInst;
 import cn.axzo.workflow.core.service.ExtAxHiTaskInstService;
-import cn.axzo.workflow.server.controller.listener.task.service.CheckApproveService;
+import cn.axzo.workflow.server.controller.listener.task.service.CheckApproverService;
 import lombok.AllArgsConstructor;
 import org.apache.maven.artifact.versioning.DefaultArtifactVersion;
 import org.flowable.bpmn.model.FlowElement;
@@ -30,7 +30,6 @@ import java.util.Objects;
 import java.util.Optional;
 import java.util.concurrent.atomic.AtomicBoolean;
 
-import static cn.axzo.workflow.common.constant.BpmnConstants.FLOW_SERVER_VERSION_130;
 import static cn.axzo.workflow.common.constant.BpmnConstants.INTERNAL_INITIATOR;
 import static cn.axzo.workflow.common.enums.BpmnFlowNodeType.NODE_EMPTY;
 import static cn.axzo.workflow.common.enums.BpmnFlowNodeType.NODE_STARTER;
@@ -45,7 +44,7 @@ import static cn.axzo.workflow.common.enums.BpmnProcessInstanceResultEnum.APPROV
  */
 @Component
 @AllArgsConstructor
-public class CheckApproverServiceImpl implements CheckApproveService {
+public class CheckApproverServiceImpl implements CheckApproverService {
 
     private final ExtAxHiTaskInstService extAxHiTaskInstService;
 
@@ -129,6 +128,7 @@ public class CheckApproverServiceImpl implements CheckApproveService {
 
     @Override
     public DefaultArtifactVersion getVersion() {
-        return new DefaultArtifactVersion(FLOW_SERVER_VERSION_130);
+//        return new DefaultArtifactVersion(FLOW_SERVER_VERSION_130);
+        return null;
     }
 }