The Autumn Festival, also known as the July Festival. Time in the Gregorian calendar on August 7 or 8 every year to start. In the Zhou Dynasty is the day the son of God personally rate three dukes and six ministers of the vassals and doctors, to the western suburbs to welcome the autumn, and held a ceremony to sacrifice less howl, matricaria, (see "rituals - the moon order"). Han Dynasty still inherited this custom. The Han Dynasty still inherited this custom. Hou Han Shu - Rituals Zhi: "the day of Autumn, welcome Autumn in the western suburbs, sacrifices to the White Emperor Matsui, the car flag costumes are white, singing "West Hao", eight rows of rows of dancers dance "Yusheng" of the dance. And the Son of Heaven into the nursery to shoot animals, to recommend the ritual of the temple, the name of the day torso Liu. The killing of beasts for sacrifice signified the coming of autumn to Yangwu."

During the Tang Dynasty, the Five Emperors were also sacrificed on every Autumn Day. The New Book of the Tang Dynasty - Rituals and Music: "The five emperors were sacrificed in the four suburbs in the fall and winter." In the Song Dynasty, on the day of the establishment of autumn, men and women wore rowan leaves to correspond to the seasonal order. There is a heather red leaves cut petals hairpin insert sideburns custom, there is also a small red beans swallowed in autumn water seven custom (see "Lin'an times and years"), the Ming inherited the Song custom. Qing Dynasty in the Autumn Festival on this day, hanging scales weighing people, and the number of scales on the day of summer compared to test the fat and thin in summer. Since the Republic of China, in the majority of rural areas, in the day or night of the Autumn Festival, there is the custom of divining the weather hot and cold. There are also watermelons, beans to taste the new, the custom of ancestors. On the day before the first day of Autumn, it was customary to cook ice gourd, steam eggplant, and decoct Elshotsholtzia drink.

At the beginning of autumn, the sycamore tree must have started to lose its leaves, hence the idiom of "to know autumn by its leaves". Autumn includes six seasons: Autumn, Heat, White Dew, Autumn Equinox, Cold Dew, and Frost, which is a transitional season from hot to cool, and then from cool to cold.