Chert is widely distributed on the bottom of the Upper Permian Heshan Formation in western Guangxi. The chert layers extend stably on the lateral side, and the bed surfaces are smooth. The authors measured three sections: the north Shanying Village section and the north Xinxu Village section in Taiping Town, Pinguo County, and the Donglan section in Donglan County. The results show that all the chert is rich in organisms such as spongy spicules, foraminifers, and algae, which are well preserved. The low content of rare earth elements is similar to that of sea water, with the slight loss of light rare earth elements and insignificant Ce negative anomaly.