Seismic wave produces and propagates around after blasting. In the course of the propagation, for the change of underground strata, the amplitude and frequency of the seismic wave may vary a lot. And these variations change with time and space, and have great effect on the ground architecture. According to the practical requirement, by analytic and numerical method, some different zones have been mapped out, and the general variation rule in blasting seismic wave has been worked out.