Because Tomb-Sweeping Day wants to eat something blue, his eyes can be clear, and the green ball should be made by Ai Qing, so he wants to eat the green ball. Eating Youth League is mainly popular in festivals like Tomb-Sweeping Day and Cold Food Festival in the south of the Yangtze River.

It is a kind of green flour cake made of grass head juice, which is mixed with tender wormwood and small thatch. There are generally three kinds of wild vegetables used to make green cakes: Hu Hu Cai, Ramie Leaf, Ai Ye and Rat Grass. The radish after blanching is green, which used to be commonly used, but now it is rarely used. Put it into a large pot, add lime and steam it, remove the lime water, and knead it into glutinous rice flour to make a bright green jiaozi.

According to the literature, the first custom of the Cold Food Festival was only the most common porridge, and then it gradually diversified. The historical records of the Youth League can be traced back to the Liang Dynasty in the Southern Dynasty only with the existing materials. Popular in Jiangsu, Zhejiang and Shanghai during the Ming and Qing Dynasties, it is also a traditional snack in Anhui, Fujian and Guangdong. It is usually made and eaten around Tomb-Sweeping Day.

In modern times, more attention is paid to early adopters, and the ancestor worship function of Qingming fruit is gradually weakening, but it is more used as a seasonal snack in spring and can also be given to relatives and friends.