东兰国家地质公园穿洞发育，形成的穿洞群有着重要的地学意义。穿洞群对研究东平河早期河流的演化具有关键作用，对探讨桂西北岩溶山区和红水河流域协同演化的历史和生态环境也具有不可估量的科研价值。 Karst cave group formed by the development of karst cave in Donglan Nationa Geopark has important geological significance. It plays a key role in studying the evolution of early rivers in Donping river, and also has immeasurable value to explore the history of co-evolution and ecological environment in karst mountainous area of northwestern Guangxi province and Hongshui river basin.