Abstract: In the digital mining simulation process of Meishan Iron Mine with the non-pillar sublevel caving method，the modeling for ore body，resource distribution，roadway engineering，especially for the blasting unit body，are established.Here，the resource management and mining production process took digital blasting unit model as an object to achieve the delicacy management and high-efficiency utilization of mineral resources.

Key words: Digitization, Model, Resources and mining, Delicacy management