diff --git a/app/src/protyle/scroll/index.ts b/app/src/protyle/scroll/index.ts
index 41735a98a..7a0bbf1cd 100644
--- a/app/src/protyle/scroll/index.ts
+++ b/app/src/protyle/scroll/index.ts
@@ -5,7 +5,6 @@ import {fetchPost} from "../../util/fetch";
 export class Scroll {
     public element: HTMLElement;
     private inputElement: HTMLInputElement;
-    public blockSize: number;
     public lastScrollTop: number;
     public keepLazyLoad: boolean;
 
@@ -22,7 +21,7 @@ export class Scroll {
         this.lastScrollTop = 0;
         this.inputElement = divElement.firstElementChild as HTMLInputElement;
         this.inputElement.addEventListener("input", () => {
-            this.element.setAttribute("aria-label", `Blocks ${this.inputElement.value}/${this.blockSize}`);
+            this.element.setAttribute("aria-label", `Blocks ${this.inputElement.value}/${protyle.block.blockCount}`);
         });
         /// #if BROWSER
         this.inputElement.addEventListener("change", () => {
@@ -52,16 +51,15 @@ export class Scroll {
         });
     }
 
-    public update(blockSize: number, protyle: IProtyle) {
-        if (typeof blockSize === "number") {
-            this.blockSize = blockSize;
-            this.inputElement.setAttribute("max", this.blockSize.toString());
-            this.element.setAttribute("aria-label", `Blocks ${this.inputElement.value}/${this.blockSize}`);
+    public update(protyle: IProtyle) {
+        if (typeof protyle.block.blockCount === "number") {
+            this.inputElement.setAttribute("max", protyle.block.blockCount.toString());
+            this.element.setAttribute("aria-label", `Blocks ${this.inputElement.value}/${protyle.block.blockCount}`);
         }
         if (protyle.block.showAll) {
             this.element.classList.add("fn__none");
         } else {
-            if (blockSize > Constants.SIZE_GET) {
+            if (protyle.block.childBlockCount > Constants.SIZE_GET) {
                 this.element.classList.remove("fn__none");
             } else {
                 this.element.classList.add("fn__none");
diff --git a/app/src/protyle/util/onGet.ts b/app/src/protyle/util/onGet.ts
index 7df5dc7cb..f497ac018 100644
--- a/app/src/protyle/util/onGet.ts
+++ b/app/src/protyle/util/onGet.ts
@@ -70,6 +70,7 @@ export const onGet = (data: IWebSocketData, protyle: IProtyle, action: string[]
     protyle.block.showAll = false;
     protyle.block.mode = data.data.mode;
     protyle.block.blockCount = data.data.blockCount;
+    protyle.block.childBlockCount = data.data.childBlockCount;
     protyle.block.action = action;
     if (!action.includes(Constants.CB_GET_UNCHANGEID)) {
         protyle.block.id = data.data.id;
@@ -177,7 +178,7 @@ const setHTML = (options: { content: string, action?: string[], unScroll?: boole
         return;
     }
     if (protyle.options.render.scroll) {
-        protyle.scroll.update(protyle.block.blockCount, protyle);
+        protyle.scroll.update(protyle);
     }
     if (options.action.includes(Constants.CB_GET_HL) && !options.unScroll) {
         preventScroll(protyle); // 搜索页签滚动会导致再次请求
diff --git a/app/src/types/protyle.d.ts b/app/src/types/protyle.d.ts
index 799c60719..7f6c8b551 100644
--- a/app/src/types/protyle.d.ts
+++ b/app/src/types/protyle.d.ts
@@ -389,6 +389,7 @@ interface IProtyle {
     id: string,
     block: {
         id?: string,
+        childBlockCount?: number,
         parentID?: string,
         parent2ID?: string,
         rootID?: string,