Double ninth festival cake, also known as "flower cake", is named after it is eaten on Double Ninth Festival, and it is a traditional seasonal food on Double Ninth Festival. In order to be beautiful and delicious, people make colorful Chongyang cakes and sprinkle some osmanthus on the cake surface.

Chongyang cake is made of rice flour, bean flour and so on. , fermentation, decorated with fruit capsules such as jujube, chestnut and almond, and steamed with sugar. Before the Tang Dynasty to the Song Dynasty, Bianjing (now Kaifeng, Henan Province) and Lin 'an (now Hangzhou, Zhejiang Province) were very popular and became popular. There are many kinds of cakes with colorful flags on them, which are very popular with children. Since then, it has been popular in modern times.