Abstract: According to the study of collapse column development characteristics and geophysical characteristics in Zhaozhuang No.2 mine,a series of research achievement have been got.The research shows that most of collapse column distributes near the syncline axis and the fault zone.With the decrease of the influence degree of collapse column effect on formation fracture,natural gamma ray value and volume density decreased,nevertheless well diameter and natural potential value increased.Collapse column 3D seismic exploration shows that bending reflection phenomenon exists on both sides of coal seam,coal seam reflected wave occurred suddenly disconnected over short distances.The research results will offer geological basis for further research on collapse column.