The main food of Nanjing Winter solstice Festival is winter solstice jiaozi, which is made of rice flour and stuffed with sugar, meat, vegetables, fruits, cowpea paste and shredded radish. It is said that winter solstice meatballs are not a new food in the south of Qing Dynasty, and their history can be traced back to the Eastern Han Dynasty. Winter solstice group is a holiday food that the whole family eats together during the winter solstice festival, which means reunion. In other places, there is a saying that people who eat jiaozi from the winter solstice will be one year older. It can be seen that jiaozi is a very popular and favorite holiday food in the south.