Abstract: The building cracking is caused by development of mining production and mining area construction burden on mineral enterprises,but not all building cracking is caused by mining production which aboves roadway or gob.The cause of building cracking above a coal mine roadway in Shaanxi province has been analyzed in this paper,points out the real reason is collapse deformation of foundation and groundwater drawdown of the site,but not the excavation of roadway.The conclusion of this paper is beneficial for the work of restoring,also can reduce unnecessary expenses of the coal mine,and this paper could provide reference for the similar projects.