diff --git a/rdbstore/src/main/ets/decoration/Entity.ets b/rdbstore/src/main/ets/decoration/Entity.ets
index 5975729..9eb842d 100644
--- a/rdbstore/src/main/ets/decoration/Entity.ets
+++ b/rdbstore/src/main/ets/decoration/Entity.ets
@@ -17,13 +17,27 @@
 import { PropertyConverter } from '../model/relation/converter/ConvertParameter';
 import { RdbConst } from '../RdbConst';
 
+/**
+ * 表注解，无需传入参数
+ * @param target
+ */
+export function Table(target: object) {
+  let tableInfo: TableInfo = {
+    tableName: target['name']
+  }
+  target[RdbConst.TABLE] = tableInfo
+}
+
 /**
  * 表注解
  * @param tableInfo
  * @returns
  */
-export function Entity(tableInfo: TableInfo): ClassDecorator {
+export function Entity(tableInfo: TableInfo = {}): ClassDecorator {
   return (target: object) => {
+    if (tableInfo.tableName === undefined) {
+      tableInfo.tableName = target['name']
+    }
     target[RdbConst.TABLE] = tableInfo
   };
 }
@@ -34,8 +48,9 @@ export function Entity(tableInfo: TableInfo): ClassDecorator {
 export interface TableInfo {
   /**
    * 表名
+   * @default 被装饰的类名
    */
-  tableName: string
+  tableName?: string
   /**
    * 索引信息
    */
diff --git a/rdbstore/src/main/ets/decoration/Weave.ets b/rdbstore/src/main/ets/decoration/Weave.ets
index 0a359b5..553b50b 100644
--- a/rdbstore/src/main/ets/decoration/Weave.ets
+++ b/rdbstore/src/main/ets/decoration/Weave.ets
@@ -48,7 +48,7 @@ export namespace Weave {
    */
   function generatePropertyInfo(tableInfo: TableInfo, entityCls: ClassConstructor<Object>) {
     const tableMeta = new TableMetaInfo()
-    tableMeta.tableName = tableInfo.tableName
+    tableMeta.tableName = tableInfo.tableName!
     tableMeta.entityCls = entityCls
     tableMeta.index =
       tableInfo.index?.map((item) => new IndexMetaInfo(item.name, item.columnName, item.unique)) ?? new Array
@@ -115,8 +115,10 @@ export namespace Weave {
    */
   function ignoreNode(entityCls: ClassConstructor<Object>, propName: string) {
     if (propName) {
-      const columnInfo: ColumnInfo = entityCls.prototype[RdbConst.COLUMN] ? entityCls.prototype[RdbConst.COLUMN][propName] : undefined
-      const embedded: EmbeddedInfo<Object> = entityCls.prototype[RdbConst.EMBEDDED] ? entityCls.prototype[RdbConst.EMBEDDED][propName] : undefined
+      const columnInfo: ColumnInfo =
+        entityCls.prototype[RdbConst.COLUMN] ? entityCls.prototype[RdbConst.COLUMN][propName] : undefined
+      const embedded: EmbeddedInfo<Object> =
+        entityCls.prototype[RdbConst.EMBEDDED] ? entityCls.prototype[RdbConst.EMBEDDED][propName] : undefined
       if (!columnInfo && !embedded) {
         return true
       }
diff --git a/rdbstore/src/ohosTest/ets/test/Ability.test.ets b/rdbstore/src/ohosTest/ets/test/Ability.test.ets
index 1be4333..c0e8b8c 100644
--- a/rdbstore/src/ohosTest/ets/test/Ability.test.ets
+++ b/rdbstore/src/ohosTest/ets/test/Ability.test.ets
@@ -45,6 +45,8 @@ import {
   SampleEntity2,
   SampleEntity20,
   SampleEntity21,
+  SampleEntity22,
+  SampleEntity23,
   SampleEntity3,
   SampleEntity4,
   SampleEntity5,
@@ -94,7 +96,10 @@ export default function abilityTest() {
   let dao21: RdbDao<SampleEntity2>
   let context: Context
   let startTime = 1
-
+  let entities = [SampleEntity, SampleEntity2, SampleEntity3, SampleEntity4, SampleEntity5, SampleEntity6,
+    SampleEntity7, SampleEntity8, SampleEntity9, SampleEntity10, SampleEntity11, SampleEntity12, SampleEntity13,
+    SampleEntity14, SampleEntity15, SampleEntity16, SampleEntity17, SampleEntity18, SampleEntity19, SampleEntity20,
+    SampleEntity21, SampleEntity22, SampleEntity23];
   beforeAll(async () => {
     //start tested ability
     const want: Want = {
@@ -112,9 +117,7 @@ export default function abilityTest() {
       db = Rdb.databaseBuilder(context, {
         version: 1,
         dbName: 'stream.db',
-        entities: [SampleEntity, SampleEntity2, SampleEntity3, SampleEntity4, SampleEntity5, SampleEntity6,
-          SampleEntity7, SampleEntity8, SampleEntity9, SampleEntity10,SampleEntity11, SampleEntity12, SampleEntity13, SampleEntity14, SampleEntity15, SampleEntity16, SampleEntity17,
-          SampleEntity18, SampleEntity19, SampleEntity20, SampleEntity21],
+        entities,
         migrations: [migration1_2, migration2_4],
         encrypt: false,
         securityLevel: relationalStore.SecurityLevel.S1,
@@ -187,7 +190,7 @@ export default function abilityTest() {
       model3.age = 100
       model2.name = 'batch'
       model.name = 'batch-insert'
-      await dao.batchInsert([model,model, model2, model3])
+      await dao.batchInsert([model, model, model2, model3])
       const list = await dao.queryAll()
       const model1 = list.find(item => {
         return item.id == 1
@@ -479,7 +482,7 @@ export default function abilityTest() {
 
       await db.initTask
       const tablesAfterDelete = await db.getAllTable()
-      expect(tablesAfterDelete.length).assertEqual(20)
+      expect(tablesAfterDelete.length).assertEqual(entities.length - 1)
 
       done()
     })
@@ -513,8 +516,8 @@ export default function abilityTest() {
     // })
   })
 
-  describe('feature',() => {
-    it('defaultColumnName', 0, async (done:Function) => {
+  describe('feature', () => {
+    it('defaultColumnName', 0, async (done: Function) => {
       dao21 = await db.getDao(SampleEntity21)
       let columns = await dao21.getAllColumns()
       expect(columns.includes('id')).assertEqual(true)
@@ -523,5 +526,17 @@ export default function abilityTest() {
       expect(columns.includes('bigId')).assertEqual(true)
       done()
     })
+
+    it('defaultTableName', 0, async (done: Function) => {
+      let dao22 = await db.getDao(SampleEntity22)
+      expect(dao22.config.tableName).assertEqual('SampleEntity22')
+      done()
+    })
+
+    it('tableDecorator', 0, async (done: Function) => {
+      let dao23 = await db.getDao(SampleEntity23)
+      expect(dao23.config.tableName).assertEqual('SampleEntity23')
+      done()
+    })
   })
 }
\ No newline at end of file
diff --git a/rdbstore/src/ohosTest/ets/test/model/Entity.ets b/rdbstore/src/ohosTest/ets/test/model/Entity.ets
index 41ce169..f777589 100644
--- a/rdbstore/src/ohosTest/ets/test/model/Entity.ets
+++ b/rdbstore/src/ohosTest/ets/test/model/Entity.ets
@@ -18,6 +18,7 @@ import {
   BigIntToStringConvertor,
   Columns,
   ColumnType,
+  Table,
   Embedded,
   Entity
 } from '../../../../../Index';
@@ -80,9 +81,7 @@ export class SampleEntity {
     targetClass: Child
   })
   child: Child = new Child()
-
   paramInt: number = 1
-
   child2: Child = new Child()
 }
 
@@ -91,7 +90,6 @@ export class Sample extends SampleEntity {
 }
 
 
-
 @Entity({
   tableName: 'SampleEntity2',
   index: [{ name: 'SampleEntity2idIndex', columnName: ['age', 'id'] },
@@ -149,7 +147,6 @@ export class SampleEntity3 {
 }
 
 
-
 @Entity({
   tableName: 'SampleEntity4',
   index: [{ name: 'SampleEntity4idIndex', columnName: ['age', 'id'] }]
@@ -202,7 +199,6 @@ export class SampleEntity5 {
 }
 
 
-
 @Entity({
   tableName: 'SampleEntity6',
   index: [{ name: 'SampleEntity6idIndex', columnName: ['age', 'id'] }]
@@ -255,7 +251,6 @@ export class SampleEntity7 {
 }
 
 
-
 @Entity({
   tableName: 'SampleEntity8',
   index: [{ name: 'SampleEntity8idIndex', columnName: ['age', 'id'] }]
@@ -308,7 +303,6 @@ export class SampleEntity9 {
 }
 
 
-
 @Entity({
   tableName: 'SampleEntity10',
   index: [{ name: 'SampleEntity10idIndex', columnName: ['age', 'id'] }]
@@ -361,7 +355,6 @@ export class SampleEntity11 {
 }
 
 
-
 @Entity({
   tableName: 'SampleEntity12',
   index: [{ name: 'SampleEntity12idIndex', columnName: ['age', 'id'] }]
@@ -414,7 +407,6 @@ export class SampleEntity13 {
 }
 
 
-
 @Entity({
   tableName: 'SampleEntity14',
   index: [{ name: 'SampleEntity14idIndex', columnName: ['age', 'id'] }]
@@ -615,4 +607,52 @@ export class SampleEntity21 {
     targetClass: Child
   })
   child: Child = new Child()
+}
+
+/**
+ * 用于Entity装饰器tableName属性缺省单元测试
+ */
+@Entity()
+export class SampleEntity22 {
+  @Columns({
+    type: ColumnType.INTEGER,
+    isPrimaryKey: true,
+    autoincrement: true
+  })
+  id: number | null = null;
+  @Columns({ type: ColumnType.INTEGER })
+  age: number = -1
+  @Columns({ type: ColumnType.TEXT })
+  name: string = ''
+  @Columns({ type: ColumnType.TEXT, convertor: BigIntToStringConvertor })
+  bigId: bigint = 1n
+  @Embedded({
+    prefix: '',
+    targetClass: Child
+  })
+  child: Child = new Child()
+}
+
+/**
+ * 用于Table装饰器tableName属性缺省单元测试
+ */
+@Table
+export class SampleEntity23 {
+  @Columns({
+    type: ColumnType.INTEGER,
+    isPrimaryKey: true,
+    autoincrement: true
+  })
+  id: number | null = null;
+  @Columns({ type: ColumnType.INTEGER })
+  age: number = -1
+  @Columns({ type: ColumnType.TEXT })
+  name: string = ''
+  @Columns({ type: ColumnType.TEXT, convertor: BigIntToStringConvertor })
+  bigId: bigint = 1n
+  @Embedded({
+    prefix: '',
+    targetClass: Child
+  })
+  child: Child = new Child()
 }
\ No newline at end of file