论述了我国铝土矿的资源特点和氧化铝的生产现状，介绍了一水硬铝石管道化溶出新技术及实施效果，阐明了一水硬铝石溶出技术的发展方向和意义。

This paper summarizes the characteristics of bauxite resources and alumina production in China The research contents, key techniques and results of performance of diaspore tube digestion are introduced. The develpment direction and significance of Diaspore bauxite digestion technology are described.