Abstract: For the limestone ore with more interlayers and difference grades of ore body，and making use of low-grade ore or waste rock as much as possible，the key is to make the ore matching plan develop carefully.In order to achieve an optimal ore blending，Dmine software is used to build digital models firstly;Then，the production and ore matching are done based on detailed geological exploration data.The results showed that the ore blending not only declined the mine production stripping ratio and improved economic efficiency of enterprises，but also reduced waste emissions and lowered environmental pollution.

Key words: Limestone mine, Dmine, Production and ore matching, Energy saving and emission reduction