There are many New Year's Day customs in ancient China, the main ones are as follows:

1. Sacrificing ancestors: New Year's Day is the beginning of the year. People will sacrifice to their ancestors and pray for the safety and prosperity of their families.

2. Set off fireworks: In ancient times, people believed that fireworks could drive away evil spirits and diseases. They would set off fireworks on New Year’s Day night to pray for peace.

3. New Year greetings: New Year greetings are given to each other around New Year's Day, wishing each other a safe and successful New Year.

4. Giving gifts: There is a custom of giving gifts on New Year’s Day. Giving gifts is to express blessings to relatives, friends and bosses.

5. Eating special foods: There is a custom of eating special foods on New Year's Day, such as eating rice cakes, dumplings, etc. These foods have the meaning of praying for abundance every year.

6. Offering sacrifices to heaven: In ancient China, there was also the custom of offering sacrifices to heaven on New Year’s Day, offering sacrifices to heaven and praying for the right time, place, people and people.