Start of autumn, that autumn is coming, vegetation began to bear children, harvest season arrived. Therefore, in the Start of Autumn folk worship the land god, celebrate the custom of harvest.
In the south, there is a custom of "nibbling autumn melon at the beginning of autumn". On this day, eat more watermelon to prevent dryness in autumn. The "Capital Annals" published in the period of the Republic of China recorded: "The day before the Start of autumn, eat watermelon, that is, chew autumn." It also means to welcome the coming of autumn.