Laba Festival, that is, the eighth day of the twelfth lunar month every year, is also called "Magic Weapon Festival", "Buddha's Daoism Festival" and "Daoism Meeting". Laba porridge will be drunk on Laba Festival.

Laba Festival was originally a Buddhist festival to commemorate the enlightenment of Sakyamuni Buddha, and later it gradually became a folk festival. The history of drinking Laba porridge in China has been more than 1000 years. On the day of Laba, Laba porridge is cooked in government offices, monasteries and the homes of the common people. In the Qing Dynasty, the custom of drinking Laba porridge was even more popular.

In the pre-Qin period, there was a custom of La Worship related to "La" in some places in China. The date of the festival was in the twelfth lunar month, and the specific date was not fixed. This custom of La Worship was regarded as one of the sources of "Laba Festival" by later generations. According to the collection of the Book of Rites and Special Sacrifices in the Suburbs compiled by Dai Sheng in the Western Han Dynasty, La Worship is "a place where everything is gathered in December.