Jiaozi, also known as dumplings, formerly known as Joule, is an ancient traditional pasta, which is deeply loved by the people of China and has a history of 1800 years. Jiaozi is deeply loved by the broad masses of people in China and is a must-eat food in most parts of northern China during the Spring Festival every year. In many provinces and cities, it is also a habit to eat jiaozi on the winter solstice, and jiaozi is also a common food in southern China.

Jiaozi was invented by Zhang Zhongjing, a doctor in Nanyang, China during the Eastern Han Dynasty. Its historical evolution has gone through a long process. At the end of the Ming Dynasty, Zhang Zilie gave a good explanation: "jiaozi's ear, that is, Duan Shi, Tang Wan, or Fenjiao, is pronounced Jiao by northerners, and it is fake jiaozi because it is called jiaozi as bait." When wrapping jiaozi, people usually wrap Jin Ruyi, sugar, peanuts, dates and chestnuts into stuffing. Eat the best and sugar, life will be sweeter in the coming year, eat peanuts, live a long and healthy life, eat dates and chestnuts, and have a baby early. In some areas, when people eat jiaozi, they have to match some non-staple food to show their good luck. For example, eating tofu symbolizes the happiness of the whole family; Eating persimmons symbolizes all the best; Eating three fresh vegetables symbolizes the prosperity of Sanyang. Taiwan Province compatriots also eat fish balls, meatballs and seaweed at the same time, symbolizing reunion and getting rich.