Abstract: The paper studied elevation effect through measuring and analyzing slope blasting vibration in soil medium and engineering project.After analyzing and comparing the experimental test data of slope blasting vibratio n, we find that the vibrating speed of particles on the top of blasting source is bigger than the speed of subjacent particles, when horizontal blast center distance is equal or very near, What is more, the weight of elevation factor is correspondingly larger between the two factors of elevation and horizontal blast center distance. At the same time, we find that earthquake energy decrease following the elevation reducing and it is affected by slope terrain through regression analysis, earthquake wave will round and form new seismic source at slope changing points, and affect intensity of blasting vibrations.