According to the field situation of Biesikuduke open-pit coal mine, the propagation law of blasting seismic wave in multi-step slope was analyzed.The blasting vibration tests were carried out on the step slope of the mining area.Four vibration test points were selected from near to far on the upper platform of the blasting area, and seven times blasting vibration tests were carried.Finally, five sets of valid data were obtained, and the five groups of vibration data results were fitted by the Sadovski formula regression fitting.As a result, the correlation coefficient R of the fitting results in axial, radial and vertical directions are all greater than 0.8, which indicates that the linear correlation is good.Meanwhile, it also shows that the vibration propagation formula has a good applicability to the slope vibration attenuation law under this geological condition.Furthermore, with the increase of the distance from the blast center, the slope particle vibration velocity decreases continuously.Among the three directions, the peak vibration velocity of the horizontal radial direction, horizontal tangential direction and the vertical direction is largest, second and smallest, respectively.Therefore, The impact of the distance from the blast center on the blasting vibration velocity is much greater than that of the elevation.By using this formula to develop the blasting vibration prediction software, the vibration peak value of measuring point position can be predicted, the maximum single-stage detonating charge and the vibration safe distance can be checked through the given parameters, which provide the data basis for solving the non-working slope stability.