Abstract: With study on the Bouguer gravity anomaly Δg and its potential field conversion field,aeromagnetic anomaly ΔT and its potential field conversion,seismic wave field and magnetotelluric field,combined with the topography and drilling data of Liaoning Province,the author comprehensively interprets the fault structures,which show the plane distribution characteristics of faults in the province.Together with the geophysical interpretation section,the vertical development characteristics of main fault structures can be recognized.The analysis reveals that the Tan-Lu fault zone is of left lateral strike slip.The faults can be divided into supracrustal fault,middle-lower crust fault and translithospheric fault.