The area of study locats in middle of the Urumieh-Dokhtar magmatic zone, 30 km southeast of Kashan city .With the aim to identify the basement fault lines of the region, ETM + of Landsat 7 satellite data were processed and 42 main fault lines were identified. Our outputs deciphered 4 main fault trends for first time in the region . The identified lines are Classifided in three directions of N50-40 degrees, N70-60 degrees and N120-110 degrees in length aspect. To evalute the kinematics and geometry of the aeromagnetic-derived faults, original field studies have been performed and dominant characteristics of the faults were collected. It worth noting that in the study area, the number of seismic activity is high and the identification of the main faults is of special importance in order to find seimogenig falut(s). On the fact that the identification of bedrock faults has crucial role in the study of major seismogenic faults in the region, aeromagnetic data were processed. In this regard, the Total magnetic field data (TMA) were used and magnetic lines were identified using different filtrations. By comparing the directions of faults and their corresponding magnetic discontinuities, the impact of those on the magnetic basement was identified. Furthermore, to compare the determined slope of the faults on the surface and the hangingwall slope side of the magnetic discontinuities, different Upward Continational filters were applied on The Reduction to the pole image (RTP). Our results revel that in most cases, the slope of magnetic discontinuities are in good consistency with the slope of faults at the same level and in few cases are inconsistent.