Abstract: In order to improve underground ore production capacity，reduce the loss of resources，improve the filling ability，and reduce mining costs，the joint process of crushing-dry separation-filling is proposed for the underground mine and the transferring from open-pit to underground mine according to the feature of the complex occurrence of underground minerals，and such shortcomings as lots of banded-ore，much oversize ores，high ore depletion，and less production and filling capacities.

Key words: Underground crushing, Dry separation, Filling, Joint process