diff --git a/frameworks/bridge/arkts_frontend/koala_projects/arkoala-arkts/arkui-ohos/src/handwritten/RepeatImpl.ts b/frameworks/bridge/arkts_frontend/koala_projects/arkoala-arkts/arkui-ohos/src/handwritten/RepeatImpl.ts
index d4691a87f952b76fb26ceb9f1b353dba3fcbdf25..49b83b96df19f1c4b52482bb2d6a9674c7a4eadc 100644
--- a/frameworks/bridge/arkts_frontend/koala_projects/arkoala-arkts/arkui-ohos/src/handwritten/RepeatImpl.ts
+++ b/frameworks/bridge/arkts_frontend/koala_projects/arkoala-arkts/arkui-ohos/src/handwritten/RepeatImpl.ts
@@ -210,7 +210,7 @@ function virtualRender<T>(
     repeatId: KoalaCallsiteKey,
 ): void {
     let dataSource = remember(() => new RepeatDataSource<T>(arr));
-    const total = attributes.userDefinedTotal_ ?? arr.length;
+    const total = attributes.userDefinedTotal_ ?? arr.length.toDouble();
     dataSource.updateData(arr, (Number.isInteger(total) && total >= 0) ? total : arr.length);
     if (!attributes.onLazyLoading_ && dataSource.totalCount() > arr.length) {
         console.error(`(${repeatId}) totalCount must not exceed the array length without onLazyLoading callback.`);
@@ -256,4 +256,4 @@ function nonVirtualRender<T>(arr: RepeatArray<T>,
         const ri = new RepeatItemImpl<T>(ele, (i as number));
         itemGenerator(ri);
     });
-}
\ No newline at end of file
+}
diff --git a/frameworks/bridge/arkts_frontend/koala_projects/arkoala-arkts/arkui-ohos/src/stateManagement/base/observeWrappedArray.ts b/frameworks/bridge/arkts_frontend/koala_projects/arkoala-arkts/arkui-ohos/src/stateManagement/base/observeWrappedArray.ts
index fbc5abc7582b16e520722af19f50591bedca3f2c..d35fc440efd420300047a8ee1264e97e8d97e662 100755
--- a/frameworks/bridge/arkts_frontend/koala_projects/arkoala-arkts/arkui-ohos/src/stateManagement/base/observeWrappedArray.ts
+++ b/frameworks/bridge/arkts_frontend/koala_projects/arkoala-arkts/arkui-ohos/src/stateManagement/base/observeWrappedArray.ts
@@ -65,14 +65,14 @@ export class WrappedArray<T> extends Array<T> implements IObservedObject, Observ
         return ObserveSingleton.instance.shouldAddRef(this.____V1RenderId);
     }
 
-    override get length(): number {
+    override get length(): int {
         if (this.shouldAddRef()) {
             this.meta_.addRef(CONSTANT.OB_LENGTH);
         }
         return this.store_.length;
     }
 
-    override set length(newLen: number) {
+    override set length(newLen: int) {
         const len = this.store_.length;
         if (len !== newLen) {
             this.store_.length;
diff --git a/frameworks/bridge/arkts_frontend/koala_projects/incremental/runtime/src/states/State.ts b/frameworks/bridge/arkts_frontend/koala_projects/incremental/runtime/src/states/State.ts
index 1f6cf62acd23a1a14dab83931ad31d6befd4cfe4..ac2f0eba9d1f1c88a310214b0d00f7b3fc171670 100644
--- a/frameworks/bridge/arkts_frontend/koala_projects/incremental/runtime/src/states/State.ts
+++ b/frameworks/bridge/arkts_frontend/koala_projects/incremental/runtime/src/states/State.ts
@@ -419,7 +419,7 @@ class ArrayStateImpl<Item> extends StateImpl<Array<Item>> implements ArrayState<
     }
 
     set length(value: number) {
-        this.mutable.length = value
+        this.mutable.length = value.toInt()
     }
 
     at(index: number): Item {
@@ -465,7 +465,7 @@ class ArrayStateImpl<Item> extends StateImpl<Array<Item>> implements ArrayState<
 
     splice(start: number, deleteCount: number | undefined, ...items: Item[]): Array<Item> {
         const array = this.mutable
-        return array.splice(start, deleteCount ?? array.length, ...items)
+        return array.splice(start, deleteCount ?? array.length.toDouble(), ...items)
     }
 
     unshift(...items: Item[]): number {