Abstract：The blasting vibration of creep mass slope of Longtan hydropower station is observed，interpreted and analyzed. The experiential formula of decay for the blasting earthquake wave is obtained. According to the features of creep mass slope of the hydropower station，the damage standards of the blasting vibration are given. On the basis of the experiential formula of decay and damage standards，the blasting safety control parameters of new cast-in-situ concrete support of the creep mass slope are gained. At last，in the light of construction characteristics of the creep mass slope，the control measures of the blasting vibration are proposed. The presented research achievements have been better applied in practical project，and satisfactory results are obtained.
