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为了研究矿山复杂空区群对地表公路的影响，以某矿山开采实际为背景，利用FLAC3 D建立模型，分析穿过该矿区地表的两条公路在受空区群影响下的沉降变形特点，得出了其变形影响规律，并预测了最终地表沉降量，结果表明，当前开采情况下采空区不影响地表公路正常运行，但沉降引起的路面起伏及坡度变化等问题需予以关注，该研究方法可供类似研究借鉴。“,”In order to study the influence of complex mined-out area to the highways on earth surface, the model was built with FLAC3D based on a mine,and it was used to study the settlement deformation characteristics of two highways on earth surface that affected by the complex mined-out area group.The laws of deformation on highways were gained,and the final ground surface settlement was predicted.The results showed that the highways on earth surface were not affected by the mined-out area under the current mining circumstance.However,the fluctuation on roadway surface and the alteration of gradient are required to be concerned.This research method can be a reference for similar mines.