An experimental system for measuring the laser-generated sound is set up.Using Nd∶YAG lasers to produce the laser-generated sound,a hydrophone is used to measure it.We analyze the characteristics of a single laser-generated sound,research the transmission characteristics of the laser-generated sound and use it to communicate in experiments.The conclusions are as follows:Firstly,it is available to use the laser-generated sound to communicate;Secondly,as the transmission distance increases,the attenuation speed of the laser-generated sound slows down,energy attenuation gets quicker in high frequency and slower in low frequency.The results of research are helpful to the development of laser-generated sound in the field of underwater communication.