Tulou is a large-scale residential building with soil as the main building material, soil and wood structure, and using stone to varying degrees. Among them, the most widely distributed, the largest number, the most abundant category and the best preserved, is Fujian Tulou. Tulou has been strictly confirmed more than 3,000 Fujian Tulou buildings, mainly distributed in Longyan Yongding County, Fujian Province, Zhangzhou Nanjing County and Hua'an County.