The ambient pressure is one of the basic factors determining cavitation. In order to investigate the influence of ambient pressure on properties of laser-induced cavitation bubble collapse sound waves, besides analysing the influence of ambient pressure on properties of laser-induced cavitation bubble oscillation, the experimental investigation of the laser-induced cavitation bubble callapse in liquids with different ambient pressure was done with high-speed video, the cavity sound waves generated by the cavitation bubble was detected with the high-frequency hydrophone. The pressure inside the tank was accurately controlled by an air pump. The results show that the ambient pressure has obvious influence on the bubble oscillation, but has no influence on sound intensity and spectrum. The radiation frequency range is 0-50 kHz, the radiation sound wave energy is 0-20 kHz, and have two obvious frequency peak value at 2 kHz and 8 kHz.