Abstract: Through examination of universality and particularity to a great many mines that the opencast working had changed the undergroud mining at thome and abroad,expounded the actuality and huge changed on the condition of mining technology of the Changba Mine breaked by the lawless mining,and the characteristic and innovate of deeper mining technology from opencast working to underground mining in the Changba Mine.This is that application of the high efficiency mining technology,the disciplinarian of rock mass moved and the abd technology in the condition of high-steep slope and space area breaked and space area watered.