Weining Weining is the center of Wumeng Plateau, located in the westernmost part of Guizhou, bordering Yunnan and Sichuan. There are 18 ethnic groups living here, with a total population of 65,438+200,000. The complex terrain, poor population and low cultural quality make the public security here in a state of chaos, which is also called the worst public security area in Guizhou.