Abstract: The complexity of goaf leads to the difficulty of determining the reserves of peripheral residual resources.This paper introduces the application of 3DMine software to evaluate the potential resource of several copper deposits in a copper mined area in Hubei province, including the establishment of three-dimensional geological models such as surface, ore body and goaf; the variation function of typical mines Calculation and model fitting; using the nearest distance method, distance power inverse ratio method and the ordinary Kriging methods for automatic classification of ore body and goaf resource types and resource estimation, so as to realize the hidden resources of complex goafs estimated, it provides important theoretical basis for mining enterprises to make next step production plan and evaluate the economic benefit of hidden resource exploitation.