Abstract: After more than half a century of mining，the resources in the boundary of a large openpit mine are rapidly degraded，and the stope faces pressure to close the pit.According to geological data，there are abundant resources for hanging and supporting resources outside the realm of the stope.In order to make this part of the resources rationally utilized，combined with the actual conditions of the ore body occurrence conditions and the established production system，the mining，mining and mineral resources mining methods were selected and analyzed in terms of technology，safety and economy.

Key words: Open pit mine, Hanging mine, Mining mode, Expand mining, Underground mining