Dumplings, originating from the Eastern Han Dynasty, were first created by Zhang Zhongjing, the sage of medicine, and were first used to dispel cold and prevent frostbite. In ancient times, it was known as "jail pill", "dumpling bait", etc. In the Qing Dynasty, it was called "dumpling". In the Qing Dynasty, it was called "dumplings" and is still in use today.

Dumplings evolved from wontons. During its long development, it was known by many names, and in ancient times it was also known as "flatbread" and "flour horn". Three Kingdoms period called "crescent ravioli", the North and South Dynasties period called "ravioli", the Tang Dynasty called dumplings for the "laying down the moon shaped ravioli", the Song Dynasty called the "corner of the child

According to legend, Zhongjing saw a lot of poor people suffering from hunger and cold, and many of them had pus in their ears. So he ordered his disciples to set up a healing hut and a cauldron in an open space, and opened the hut on the winter solstice, giving medicine to the poor to cure their wounds.

The medicine, the name of the "cold Jiao ear soup", the practice is to use mutton, pepper and some of the cold herbs boiled in the pot, boiled and then fished out and chopped, wrapped in dough into an ear-shaped "Jiao ear", boiled in the pot and given to patients begging for medicine. Each person to give two ears, a bowl of soup. The patient ate the soup to get rid of cold body heat, blood flow, two ears warm. After a period of time, the patient's rotten ears will be cured.