Abstract: The Southwest of China is a region which was widely spread by Karst Region.Since its wet climate, rich rainfall, obvious flowing water and lots of dissolubility rock.

• 我国西南地区气候湿润，降雨丰沛，流水作用显著，并且存在大量的可溶性岩石，因此，这一地区是喀斯特地貌广为分布的地区。