Hakka earth building, commonly known as "Tuweizi", is independent of the world's residential architecture art forest with its long history, unique style, huge scale and exquisite structure. They are mainly distributed in Longyan and Zhangzhou in Fujian Province, but there is also a Hakka "big house" built in Gongcheng in northern Guangxi in the early years of Qing Daoguang, which inherits the architectural style of Fujian folk houses and is basically well preserved so far. In the process of building the "castle" inhabited by aborigines, in order to protect their homes, prevent floods and reduce disasters, people planted more than 3 kilometers of river shelterbelts from Daoguang and Xianfeng years. In the past one or two hundred years, it has experienced many disasters and become a beautiful landscape that can shelter villages, which has great ornamental value.