diff --git a/Upload2Notion.ts b/Upload2Notion.ts
index c7e22d6..a151154 100644
--- a/Upload2Notion.ts
+++ b/Upload2Notion.ts
@@ -85,25 +85,19 @@ export class Upload2Notion {
 		}
 	}
 
-	async syncMarkdownToNotion(title:string, allowTags:boolean, tags:string[], markdown: string, nowFile: TFile, app:App, settings:any): Promise<any> {
+	async syncMarkdownToNotion(title:string, allowTags:boolean, tags:string[], markdown: string,pageId:string): Promise<any> {
 		let res:any
 		const yamlObj:any = yamlFrontMatter.loadFront(markdown);
 		const __content = yamlObj.__content
 		const file2Block = markdownToBlocks(__content);
-		const frontmasster =await app.metadataCache.getFileCache(nowFile)?.frontmatter
-		const notionID = frontmasster ? frontmasster.notionID : null
-
-		if(notionID){
-				res = await this.updatePage(notionID, title, allowTags, tags, file2Block);
-		} else {
-			 	res = await this.createPage(title, allowTags, tags, file2Block);
-		}
-		if (res.status === 200) {
-			await this.updateYamlInfo(markdown, nowFile, res, app, settings)
-		} else {
-			new Notice(`${res.text}`)
+		// 如果是第一块chunk,就直接新增
+		if( pageId){
+			res = await this.appendPage(pageId,file2Block)
+		}else{
+			res = await this.createPage(title, allowTags, tags, file2Block);
 		}
 		return res
+
 	}
 
 	async updateYamlInfo(yamlContent: string, nowFile: TFile, res: any,app:App, settings:any) {
@@ -136,4 +130,56 @@ export class Upload2Notion {
 			new Notice(`write file error ${error}`)
 		}
 	}
+
+	 splitLongString(str: string) {
+		if (str.length <= 4000) {
+			return [str];
+		}
+
+		const chunks = [];
+		let startIndex = 0;
+		let endIndex = 4000;
+
+		while (endIndex < str.length) {
+			if (str[endIndex] !== '\n') {
+				while (endIndex > startIndex && str[endIndex] !== '\n') {
+					endIndex--;
+				}
+			}
+
+			chunks.push(str.substring(startIndex, endIndex));
+			startIndex = endIndex + 1;
+			endIndex = startIndex + 4000;
+		}
+
+		chunks.push(str.substring(startIndex));
+
+		return chunks;
+	}
+
+	async appendPage(pageId:string, childArr: any){
+		const bodyString:any = {
+			children: childArr,
+		}
+		if (pageId === undefined){
+			return
+		}
+		try {
+			const response = await requestUrl({
+				url: `https://api.notion.com/v1/blocks/${pageId}/children`,
+				method: 'PATCH',
+				headers: {
+					'Content-Type': 'application/json',
+					// 'User-Agent': 'obsidian.md',
+					'Authorization': 'Bearer ' + this.app.settings.notionAPI,
+					'Notion-Version': '2021-08-16',
+				},
+				body: JSON.stringify(bodyString),
+			})
+			return response;
+		} catch (error) {
+			new Notice(`network error ${error}`)
+		}
+	}
+
 }
diff --git a/main.ts b/main.ts
index 421a50d..cbc7bcf 100644
--- a/main.ts
+++ b/main.ts
@@ -82,17 +82,38 @@ export default class ObsidianSyncNotionPlugin extends Plugin {
 				}
 				const { markDownData, nowFile, tags } =await this.getNowFileMarkdownContent(this.app);
 
-
-				if (markDownData) {
-					const { basename } = nowFile;
-					const upload = new Upload2Notion(this);
-					const res = await upload.syncMarkdownToNotion(basename, allowTags, tags, markDownData, nowFile, this.app, this.settings)
-					if(res.status === 200){
-						new Notice(`${langConfig["sync-success"]}${basename}`)
-					}else {
-						new Notice(`${langConfig["sync-fail"]}${basename}`, 5000)
+		const upload = new Upload2Notion(this);
+		const frontmasster = app.metadataCache.getFileCache(nowFile)?.frontmatter
+		const notionID = frontmasster ? frontmasster.notionID : null
+		let chunks = upload.splitLongString(markDownData)
+		// 存在就先删除
+		if (notionID) {
+			await upload.deletePage(notionID)
+		}
+		try {
+			if (chunks.length >0) {
+				const {basename} = nowFile;
+				// create page
+				const res = await upload.syncMarkdownToNotion(basename, allowTags, tags, chunks[0], null)
+				let {id} = res.json
+				// append page
+				for (let i = 1; i < chunks.length; i++) {
+					const response = await upload.syncMarkdownToNotion(basename, allowTags, tags, chunks[i], id)
+					if (response.status != 200) {
+						new Notice(`${langConfig["sync-fail"]}${basename},please retry!`, 5000)
+						break
 					}
 				}
+				// update YamlInfo
+				await upload.updateYamlInfo(markDownData, nowFile, res, app, this.settings)
+				new Notice(`${langConfig["sync-success"]}${basename}`)
+
+			} else {
+				new Notice('sync-fail,please check your file in obsidian')
+			}
+		} catch (Exception) {
+			new Notice('sync-fail,please retry')
+		}
 	}
 
 	async getNowFileMarkdownContent(app: App) {