In order to study the influence of vacuum on ground vibration caused by explosion,the attenuation law of ground vibration caused by explosion after vacuum explosive vessel is studied.The attenuation law of explosion vibration is studied,and the influence of vacuum on the ground vibration effect after explosion is further analyzed.At the same time,the influence distance of different explosive amount in the explosion container is predicted to determine the explosion influence range for protection.Based on the experimental data,the attenuation law of vibration velocity with explosive amount and the distance between testing point and charge is analyzed,and the blasting vibration parameters K、α are obtained by using the Sadowski empirical formula and the least square method.Finally,the attenuation equation of explosion vibration velocity is obtained,and the vibration attenuation curves under comprehensive condition and vacuum are compared and analyzed.The results show that the vacuum degree has an effect on the vibration velocity attenuation under the 5 times specific distance of the explosive container.However,when the specific distance is greater than 5 times the specific distance,the vacuum degree of the explosive container has little effect on the vibration,and the distant foundation vibration does not change much at the same distance.In the case of the same charge quantity and distance between testing point and charge,the resultant velocity increases slowly with the increase of container pressure,that is,the vacuum has little effect on the vibration at a long distance.This is the first time in China to explore the law of ground explosion vibration under different vacuum degrees,and the safe distance is calculated numerically according to the specific allowable vibration velocity,which can be used as a reference for similar research.