Abstract:In open pit mines, transportation, water conservancy, energy and other fields, blasting construction is a relatively common method. The vibration elevation effect caused by blasting is one of the important research contents of the vibration velocity propagation law on the slope. This paper analyzed the propagation law of blasting vibration in open pit mine by concrete model blasting test, and explored the effect of explosive charge on the blasting vibration elevation effect. The blasting test shows: In the positive elevation step model, as the dose increases, the acceleration of the velocity is more pronounced in the area where the elevation effect appears. In the negative elevation step model, the vibration velocity of each measuring point of the step increases with the increase of the dose. The larger the dose, the more obvious the effect of the negative elevation difference on the blasting vibration attenuation.