Legend 1: According to the legend Laha Festival is the eighth day of the month of Lunar New Year (December), originated in the beginning of the Yuan Dynasty, it is said that Zhu Yuanzhang fell in prison suffering, when it was cold, cold and hungry Zhu Yuanzhang even from the prison of the rat hole shaved to find out some red beans, rice, jujubes and other seven or eight kinds of grains and cereals. Zhu Yuanzhang then boiled these things into a porridge, because that day is the eighth day of the eighth month of the lunar calendar, Zhu Yuanzhang will be beautifully named this pot of miscellaneous grain porridge for the congee of the eighth month of the lunar calendar. Later, Zhu Yuanzhang pacified the world, sitting in the north towards the south as the emperor, in order to commemorate that special day in prison, he then set the day as Lahai Festival, the day he ate the porridge of mixed grains formally named Lahai congee.

Legend 2: Laha Festival from the "red beans to beat the ghost" custom. Legend has it that Zhuan Xu, one of the five ancient emperors, had three sons who became evil spirits after their deaths, specializing in scaring children. In ancient times, people generally believed in superstition and were afraid of ghosts and gods, believing that adults and children who suffered from strokes and illnesses and were in poor health were all due to epidemics and ghosts. These evil spirits are not afraid of the world, single afraid of red (red) beans, so there is a "red beans to beat the ghosts," said. Therefore, on the eighth day of the first day of the lunar month to red small beans, red small beans porridge, in order to get rid of the disease to welcome the good luck.