Tomb-Sweeping Day ate jiaozi in order to pin people's good expectations for the future and express their nostalgia for their deceased relatives. Dumpling skin is round, symbolizing reunion and auspicious meaning of peace and happiness; In addition, jiaozi looks like an ingot, indicating that its financial resources are rolling in. Tomb-Sweeping Day is a traditional festival in China. In the old society with bad living conditions, people in some places have the habit of eating jiaozi on holidays. Tomb-Sweeping Day coincides with the sacrifice, and naturally it is an opportunity for jiaozi to treat himself, which has become a custom over time.