Introduction of Double Ninth Festival: Double Ninth Festival, also known as Double Ninth Festival, Sunbathing Autumn Festival and "Treading Autumn Festival", is a traditional festival in China, which falls on the ninth day of the ninth lunar month every year. Celebrating the Double Ninth Festival generally includes traveling to enjoy autumn, climbing high and overlooking, watching chrysanthemums, planting dogwood all over, eating double ninth cake, drinking chrysanthemum wine and other activities. The Double Ninth Festival was formed as early as the Warring States Period and was officially designated as a folk festival in the Tang Dynasty. From generation to generation. Chongyang and the "spring outing" on March 3 are all family members. On Double Ninth Festival, all relatives should climb the mountain together to "avoid disaster".

In the Book of Changes, "six" is defined as yin number, and "nine" is defined as yang number. On September 9, the sun and the moon combined with the sun, so it was called Chongyang, also known as Chongyang. The Double Ninth Festival was formed as early as the Warring States Period. Since the Wei and Jin Dynasties, the atmosphere of the Double Ninth Festival has become increasingly rich, and scholars of all dynasties have chanted it. In the Tang dynasty, it was officially designated as a folk festival, which has been followed up to now.

September 9th of the lunar calendar 1989 is designated as the Day for the Elderly, and the whole society is encouraged to establish the atmosphere of respecting, loving and helping the elderly. On May 20th, 2006, the Double Ninth Festival was included in the first batch of national intangible cultural heritage in the State Council.