In order to avoid Guanyin Mountain tunnel blasting excavation from affecting those surrounding sensitive structures, it is necessary to conduct researches on tunnel blasting excavation scheme and surface particle vibration velocity attenuation law. Researched are formation and attenuation laws of blasting seismic waves produced in tunnel blasting and prepared are different rock blasting and excavation schemes according to the geological conditions of Guanyin Mountain National Forest Park. Discussed in detail are blast-hole layout, undercutting eye arrangement, powder-filling manner and selection of blasting parameters in different blasting schemes. Through analysis and calculation, reasonable blasting parameters are obtained so as to avoid Guanyin Mountain tunnel blasting excavation from affecting those surrounding sensitive structures.