diff --git a/hsweb-commons/hsweb-commons-crud/src/main/java/org/hswebframework/web/crud/events/EntityEventListener.java b/hsweb-commons/hsweb-commons-crud/src/main/java/org/hswebframework/web/crud/events/EntityEventListener.java
index e6a6d693a..8dae712ff 100644
--- a/hsweb-commons/hsweb-commons-crud/src/main/java/org/hswebframework/web/crud/events/EntityEventListener.java
+++ b/hsweb-commons/hsweb-commons-crud/src/main/java/org/hswebframework/web/crud/events/EntityEventListener.java
@@ -4,6 +4,7 @@ package org.hswebframework.web.crud.events;
 import lombok.RequiredArgsConstructor;
 import lombok.Setter;
 import org.apache.commons.collections4.CollectionUtils;
+import org.apache.commons.collections4.MapUtils;
 import org.hswebframework.ezorm.core.GlobalConfig;
 import org.hswebframework.ezorm.core.param.QueryParam;
 import org.hswebframework.ezorm.rdb.events.EventListener;
@@ -222,11 +223,11 @@ public class EntityEventListener implements EventListener, Ordered {
 
     // 回填修改后的字段到准备更新的数据中
     // 用于实现通过事件来修改即将被修改的数据
-    protected void prepareUpdateInstance(List<Object> after, EventContext ctx) {
+    protected void prepareUpdateInstance(List<Object> before, List<Object> after, EventContext ctx) {
         Map<String, Object> instance = ctx
             .get(MappingContextKeys.updateColumnInstance)
             .orElse(null);
-        if (after.size() != 1 || instance == null) {
+        if (before.size() != 1 || after.size() != 1 || instance == null) {
             //不支持一次性更新多条数据时设置.
             return;
         }
@@ -235,9 +236,11 @@ public class EntityEventListener implements EventListener, Ordered {
             .orElseThrow(UnsupportedOperationException::new);
 
         Object afterEntity = after.get(0);
+        Object beforeEntity = before.get(0);
         Map<String, Object> copy = new HashMap<>(instance);
 
         Map<String, Object> afterMap = FastBeanCopier.copy(afterEntity, new HashMap<>());
+        Map<String, Object> beforeMap = FastBeanCopier.copy(beforeEntity, new HashMap<>());
 
         //设置实体类中指定的字段值
         for (Map.Entry<String, Object> entry : afterMap.entrySet()) {
@@ -246,10 +249,19 @@ public class EntityEventListener implements EventListener, Ordered {
                 continue;
             }
 
+            //原始值
             Object origin = copy.remove(column.getAlias());
             if (origin == null) {
                 origin = copy.remove(column.getName());
             }
+            //没有指定原始值,说明是通过事件指定的.
+            if (origin == null) {
+                //值相同忽略更新,可能是事件并没有修改这个字段.
+                if (Objects.equals(beforeMap.get(column.getAlias()), entry.getValue()) ||
+                    Objects.equals(beforeMap.get(column.getName()), entry.getValue())) {
+                    continue;
+                }
+            }
 
             //按sql更新 忽略
             if (origin instanceof NativeSql) {
@@ -262,15 +274,14 @@ public class EntityEventListener implements EventListener, Ordered {
         DSLUpdate<?, ?> operator = ctx
             .get(ContextKeys.<DSLUpdate<?, ?>>source())
             .orElse(null);
-        if (operator != null) {
+
+        if (operator != null && MapUtils.isNotEmpty(copy)) {
             for (Map.Entry<String, Object> entry : copy.entrySet()) {
                 Object val = entry.getValue();
                 if (val instanceof NullValue || val instanceof NativeSql) {
                     continue;
                 }
-                for (String col : copy.keySet()) {
-                    operator.excludes(col);
-                }
+                operator.excludes(entry.getKey());
             }
 
         }
@@ -316,7 +327,7 @@ public class EntityEventListener implements EventListener, Ordered {
                                                        (_list, _after, _type) -> event)
                                     .then(Mono.fromRunnable(() -> {
                                         if (event.hasListener()) {
-                                            prepareUpdateInstance(after, context);
+                                            prepareUpdateInstance(list, after, context);
                                         }
                                     }));
 
diff --git a/hsweb-commons/hsweb-commons-crud/src/test/java/org/hswebframework/web/crud/CrudTests.java b/hsweb-commons/hsweb-commons-crud/src/test/java/org/hswebframework/web/crud/CrudTests.java
index e172ea4ab..54294b786 100644
--- a/hsweb-commons/hsweb-commons-crud/src/test/java/org/hswebframework/web/crud/CrudTests.java
+++ b/hsweb-commons/hsweb-commons-crud/src/test/java/org/hswebframework/web/crud/CrudTests.java
@@ -2,12 +2,14 @@ package org.hswebframework.web.crud;
 
 import org.hswebframework.web.crud.entity.CustomTestEntity;
 import org.hswebframework.web.crud.entity.TestEntity;
+import org.hswebframework.web.crud.events.EntityBeforeModifyEvent;
 import org.hswebframework.web.crud.service.TestEntityService;
 import org.junit.Assert;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.context.event.EventListener;
 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
 import reactor.core.publisher.Mono;
 import reactor.test.StepVerifier;
@@ -27,7 +29,7 @@ public class CrudTests {
         entity.setExt("xxx");
         entity.setAge(1);
         entity.setName("test");
-        
+
         Mono.just(entity)
             .cast(TestEntity.class)
             .as(service::insert)
@@ -40,5 +42,13 @@ public class CrudTests {
                .as(StepVerifier::create)
                .expectNextMatches(e -> e instanceof CustomTestEntity)
                .verifyComplete();
+
+        service.createUpdate()
+               .set("name", "test2")
+               .where("id", entity.getId())
+               .execute()
+               .as(StepVerifier::create)
+               .expectNext(1)
+               .verifyComplete();
     }
 }
diff --git a/hsweb-commons/hsweb-commons-crud/src/test/java/org/hswebframework/web/crud/entity/CustomTestEntity.java b/hsweb-commons/hsweb-commons-crud/src/test/java/org/hswebframework/web/crud/entity/CustomTestEntity.java
index a66d07edb..f9be2488d 100644
--- a/hsweb-commons/hsweb-commons-crud/src/test/java/org/hswebframework/web/crud/entity/CustomTestEntity.java
+++ b/hsweb-commons/hsweb-commons-crud/src/test/java/org/hswebframework/web/crud/entity/CustomTestEntity.java
@@ -6,6 +6,7 @@ import lombok.NoArgsConstructor;
 import lombok.Setter;
 import org.hswebframework.web.api.crud.entity.GenericEntity;
 import org.hswebframework.web.bean.ToString;
+import org.hswebframework.web.crud.annotation.EnableEntityEvent;
 import org.hswebframework.web.crud.generator.Generators;
 
 import javax.persistence.Column;
@@ -16,6 +17,7 @@ import javax.persistence.Table;
 @Setter
 @AllArgsConstructor(staticName = "of")
 @NoArgsConstructor
+@EnableEntityEvent
 public class CustomTestEntity extends TestEntity {
 
 
diff --git a/hsweb-commons/hsweb-commons-crud/src/test/java/org/hswebframework/web/crud/service/TestEntityService.java b/hsweb-commons/hsweb-commons-crud/src/test/java/org/hswebframework/web/crud/service/TestEntityService.java
index e813fa099..e5e24711d 100644
--- a/hsweb-commons/hsweb-commons-crud/src/test/java/org/hswebframework/web/crud/service/TestEntityService.java
+++ b/hsweb-commons/hsweb-commons-crud/src/test/java/org/hswebframework/web/crud/service/TestEntityService.java
@@ -1,11 +1,14 @@
 package org.hswebframework.web.crud.service;
 
 import org.hswebframework.web.crud.entity.TestEntity;
+import org.hswebframework.web.crud.events.EntityBeforeModifyEvent;
 import org.hswebframework.web.crud.events.EntityCreatedEvent;
+import org.hswebframework.web.crud.events.EntityPrepareModifyEvent;
 import org.hswebframework.web.id.IDGenerator;
 import org.junit.jupiter.api.Test;
 import org.springframework.context.event.EventListener;
 import org.springframework.stereotype.Service;
+import reactor.core.publisher.Mono;
 
 @Service
 public class TestEntityService extends GenericReactiveCrudService<TestEntity,String> {
@@ -16,4 +19,11 @@ public class TestEntityService extends GenericReactiveCrudService<TestEntity,Str
 
         System.out.println(event.getEntity());
     }
+
+
+    @EventListener
+    public void listener(EntityPrepareModifyEvent<TestEntity> event){
+        System.out.println(event);
+        event.async(Mono.empty());
+    }
 }