diff --git a/.github/workflows/check-open-prs.yml b/.github/workflows/check-open-prs.yml
new file mode 100644
index 00000000..2d107a2c
--- /dev/null
+++ b/.github/workflows/check-open-prs.yml
@@ -0,0 +1,60 @@
+name: Check Open PRs and Notify Slack
+
+on:
+  schedule:
+    # 매 1시간마다 실행
+    - cron: '0 * * * *'
+
+  workflow_dispatch: # 수동 실행을 위한 트리거
+    inputs:
+      force_notify:
+        description: "Force Slack notification"
+
+jobs:
+  notify_open_prs:
+    runs-on: ubuntu-latest
+
+    steps:
+    # 1. GitHub 리포지토리 체크아웃
+    - name: Checkout repository
+      uses: actions/checkout@v3
+
+    # 2. PR 데이터 수집
+    - name: Fetch Open PRs with Reviewers
+      id: fetch_prs
+      run: |
+        # 모든 열린 PR 가져오기
+        prs=$(gh pr list --json number,title,url,reviewRequests --jq '.[] | select(.reviewRequests | length > 0)')
+        echo "Found PRs: $prs"
+
+        # JSON 데이터를 Action output으로 저장
+        echo "::set-output name=prs::$prs"
+
+      env:
+        GITHUB_TOKEN: ${{ secrets.G_TOKEN }} # GitHub 기본 제공 토큰
+
+    # 3. Slack 알림 전송
+    - name: Notify Slack
+      if: steps.fetch_prs.outputs.prs != '' # 열린 PR이 있을 때만 실행
+      env:
+        SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }} # Slack 웹훅 URL
+      run: |
+        echo "Preparing Slack notification..."
+        prs_json='${{ steps.fetch_prs.outputs.prs }}'
+
+        if [ -z "$prs_json" ]; then
+          echo "No PRs to notify about."
+          exit 0
+        fi
+
+        # Slack 메시지 작성
+        message=":warning: *Open Pull Requests with Reviewers:*"
+        echo $prs_json | jq -c '.[]' | while read -r pr; do
+          title=$(echo $pr | jq -r '.title')
+          url=$(echo $pr | jq -r '.url')
+          reviewers=$(echo $pr | jq -r '.reviewRequests | map(.login) | join(", ")')
+          message+="\n- <$url|$title> (Reviewers: $reviewers)"
+        done
+
+        # Slack 메시지 전송
+        curl -X POST -H 'Content-type: application/json' --data "{\"text\":\"$message\"}" $SLACK_WEBHOOK_URL