There is a custom of eating seven dishes on the seventh day of the seventh lunar month. The soup made of seven kinds of vegetables, eaten when people are alive, is a good omen. It is said that it can eliminate evil spirits and cure all diseases. Mustard, cabbage, leek, spring vegetables, celery, garlic and thick-petalled vegetables used in Chaoshan, Guangdong; Hakka people use celery, garlic, onion, coriander and leek to match fish. Spinach, celery, onion and garlic, leeks, mustard greens, shepherd's purse and Chinese cabbage are used in Taiwan Province Province and Fujian Province.

Among them, celery and onion are clever, garlic is good at calculation, mustard makes people live longer, and Hakka people like to cook and eat with fish more than enough. On that day, all rural residents who owe one or two vegetables and collect other people's vegetables and cook seven pieces in the field are not thieves.

People's Day has a history of at least two thousand years in China. According to folklore, when Nu Wa created human beings, she created chickens, dogs, sheep, pigs, cows and horses six days before the first month, and human beings on the seventh day, so the seventh day of the first month is the birthday of human beings. Also known as "People's Victory Day", "People's Celebration Day" and "People's Seventh Day".