diff --git a/check-service-status.sh b/check-service-status.sh
new file mode 100644
index 0000000..e08637d
--- /dev/null
+++ b/check-service-status.sh
@@ -0,0 +1,34 @@
+#!/bin/bash
+
+echo "=========================================="
+echo "AI Review Service - Status Check"
+echo "=========================================="
+echo ""
+
+echo "1. Service Status:"
+systemctl status ai-review.service --no-pager
+echo ""
+
+echo "=========================================="
+echo "2. Last 100 lines of logs:"
+echo "=========================================="
+journalctl -u ai-review.service -n 100 --no-pager
+echo ""
+
+echo "=========================================="
+echo "3. Checking files:"
+echo "=========================================="
+echo "Backend exists: $([ -d /home/user/code-review-agent/backend ] && echo 'YES' || echo 'NO')"
+echo "Frontend exists: $([ -d /home/user/code-review-agent/frontend ] && echo 'YES' || echo 'NO')"
+echo "Public dir exists: $([ -d /home/user/code-review-agent/backend/public ] && echo 'YES' || echo 'NO')"
+echo "venv exists: $([ -d /home/user/code-review-agent/backend/venv ] && echo 'YES' || echo 'NO')"
+echo ".env exists: $([ -f /home/user/code-review-agent/backend/.env ] && echo 'YES' || echo 'NO')"
+echo "DB exists: $([ -f /home/user/code-review-agent/backend/review.db ] && echo 'YES' || echo 'NO')"
+echo ""
+
+echo "=========================================="
+echo "4. Manual start test:"
+echo "=========================================="
+echo "Run this command to see actual error:"
+echo "cd /home/user/code-review-agent/backend && source venv/bin/activate && python -m uvicorn app.main:app --host 0.0.0.0 --port 8000"
+