diff --git a/.github/scripts/notion-sync.js b/.github/scripts/notion-sync.js
new file mode 100644
index 0000000..341d198
--- /dev/null
+++ b/.github/scripts/notion-sync.js
@@ -0,0 +1,108 @@
+// GitHub Action에서 'env:'로 전달해 준 변수들을 가져옵니다.
+const { NOTION_API_KEY, NOTION_DATABASE_ID, TASK_ID_NUM, PR_URL, PR_ACTION, PR_IS_MERGED } = process.env;
+
+// --- 노션 DB 속성 이름 (하드코딩) ---
+const ID_PROPERTY_NAME = 'ID';
+const STATUS_PROPERTY_NAME = '상태';
+const STATUS_IN_PROGRESS = '진행 중';
+const STATUS_DONE = '완료';
+// ------------------------------------
+
+// 메인 로직을 비동기 함수로 실행
+async function main() {
+  if (!TASK_ID_NUM) {
+    console.log('Task ID number is not provided. Skipping.');
+    return;
+  }
+
+  const { Client } = require('@notionhq/client');
+  const notion = new Client({ auth: NOTION_API_KEY });
+
+  const taskIdNum = parseInt(TASK_ID_NUM, 10);
+  const taskIdString = `KIO-${taskIdNum}`;
+  const isMerged = PR_IS_MERGED === 'true'; // 문자열 'true'를 boolean으로 변환
+
+  let newStatus = null;
+  let commentText = null;
+
+  // 1. 이벤트에 따라 상태와 코멘트 결정
+  if (PR_ACTION === 'opened') {
+    newStatus = STATUS_IN_PROGRESS;
+    commentText = `🚀 PR이 생성되었습니다: ${PR_URL}`;
+  } else if (PR_ACTION === 'reopened') {
+    newStatus = STATUS_IN_PROGRESS;
+  } else if (PR_ACTION === 'closed' && isMerged) {
+    newStatus = STATUS_DONE;
+    commentText = '✅ PR이 머지되었습니다';
+  } else {
+    console.log(`Skipping: PR action '${PR_ACTION}', merged status '${isMerged}'.`);
+    return;
+  }
+
+  // 2. KIO-ID (숫자)로 노션 페이지 검색
+  let pageId = null;
+  try {
+    const response = await notion.databases.query({
+      database_id: NOTION_DATABASE_ID,
+      filter: {
+        property: ID_PROPERTY_NAME,
+        unique_id: {
+          equals: taskIdNum,
+        },
+      },
+    });
+
+    if (response.results.length === 0) {
+      console.log(`[Error] No Notion page found with ID: ${taskIdString}`);
+      return;
+    }
+    pageId = response.results[0].id;
+    console.log(`Found Notion page: ${pageId}`);
+  } catch (error) {
+    console.error('Error finding Notion page:', error.body || error.message);
+    return;
+  }
+
+  // 3. 노션 페이지 상태 업데이트 (Status 타입)
+  try {
+    await notion.pages.update({
+      page_id: pageId,
+      properties: {
+        [STATUS_PROPERTY_NAME]: {
+          status: {
+            name: newStatus,
+          },
+        },
+      },
+    });
+    console.log(`Updated status to '${newStatus}' for page ${pageId}`);
+  } catch (error) {
+    console.error('Error updating Notion page status:', error.body || error.message);
+    // 상태 업데이트에 실패해도 코멘트는 시도
+  }
+
+  // 4. 노션 페이지에 코멘트 추가 (링크 포함)
+  try {
+    if (!commentText) {
+      return;
+    }
+
+    await notion.comments.create({
+      parent: { page_id: pageId },
+      rich_text: [
+        {
+          text: {
+            content: commentText,
+            link: { url: PR_URL },
+          },
+        },
+      ],
+    });
+    console.log(`Added comment to page ${pageId}`);
+  } catch (error) {
+    console.error('Error adding comment to Notion page:', error.body || error.message);
+  }
+}
+
+// 스크립트 실행
+main();
diff --git a/.github/scripts/package.json b/.github/scripts/package.json
new file mode 100644
index 0000000..f44946f
--- /dev/null
+++ b/.github/scripts/package.json
@@ -0,0 +1,8 @@
+{
+  "name": "notion-sync-script",
+  "version": "1.0.0",
+  "private": true,
+  "dependencies": {
+    "@notionhq/client": "^2.2.14"
+  }
+}
\ No newline at end of file
diff --git a/.github/workflows/notion-sync.yml b/.github/workflows/notion-sync.yml
new file mode 100644
index 0000000..d251590
--- /dev/null
+++ b/.github/workflows/notion-sync.yml
@@ -0,0 +1,48 @@
+name: Update Notion Task Status from PR
+
+on:
+  pull_request:
+    types: [opened, reopened, closed]
+
+jobs:
+  update_notion:
+    runs-on: ubuntu-latest
+    if: "contains(github.head_ref, 'KIO-')"
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Get Task ID Number from Branch Name
+        id: get_id
+        run: |
+          BRANCH_NAME="${{ github.head_ref }}"
+          REGEX="KIO-([0-9]+)"
+          if [[ $BRANCH_NAME =~ $REGEX ]]; then
+            echo "task_id_num=${BASH_REMATCH[1]}" >> $GITHUB_OUTPUT
+          else
+            echo "No KIO-[number] ID found in branch name."
+          fi
+
+      - name: Set up Node.js
+        if: steps.get_id.outputs.task_id_num
+        uses: actions/setup-node@v4
+        with:
+          node-version: '18'
+
+      - name: Install Script Dependencies
+        if: steps.get_id.outputs.task_id_num
+        run: npm install
+        working-directory: .github/scripts
+
+      - name: Run Notion Sync Script
+        if: steps.get_id.outputs.task_id_num
+        run: node notion-sync.js
+        working-directory: .github/scripts
+        env:
+          NOTION_API_KEY: ${{ secrets.NOTION_API_KEY }}
+          NOTION_DATABASE_ID: ${{ secrets.NOTION_DATABASE_ID }}
+          TASK_ID_NUM: ${{ steps.get_id.outputs.task_id_num }}
+          PR_URL: ${{ github.event.pull_request.html_url }}
+          PR_ACTION: ${{ github.event.action }}
+          PR_IS_MERGED: ${{ github.event.pull_request.merged }}
\ No newline at end of file