Every winter solstice, no matter the rich or the poor in northern China, jiaozi is indispensable. Jiaozi eaten in the winter solstice and jiaozi eaten in the Spring Festival have different meanings. Jiaozi eaten during the Spring Festival is at the junction of the new year and the old year, and jiaozi means "making friends" when you are old. Eating jiaozi during the Spring Festival is considered lucky. Jiaozi, which is eaten from the winter solstice, means to drive away the cold.

According to legend, Zhang Zhongjing, a medical sage, saw the frozen people when he retired in his later years, so he wrapped mutton, some cold-dispelling herbs and dough in his ears and made the medicine of "Joule Decoction for Eliminating Cold" for the people to eat. Later, every winter solstice, people imitate it and eat it.

The custom of expanding the information of winter solstice;

Many places in southern China will celebrate the winter solstice. The southern coastal areas, such as western Guangdong, Chaoshan and parts of Zhejiang, continue the traditional custom of ancestor worship. Every household is dedicated to ancestor statues, memorial tablets, etc. Go to the hall at home, place an altar, set up incense burners, offerings, etc. In some places, while offering sacrifices to ancestors, they also offer sacrifices to gods, land gods and deities, so as to make the next year's weather favorable and the family prosperous.

In many parts of northern China, it is a custom to eat jiaozi every winter solstice. According to legend, Zhang Zhongjing, a medical sage, saw a frozen person when he retired in his later years, so he wrapped mutton, some cold-dispelling herbs and dough into the shape of ears, made a medicine called "Quhan Jiaoer Decoction" and gave it to the people. Later, on the solstice of winter, people imitated eating and formed a custom.