Abstract: To meet the needs of hydrophone sensitivity calibration, the hydrophone sensitivity calibration system using laser method is studied. According to the basic principle of the laser method based hydrophone sensitivity measurements and the comprehensive analysis of relevant research works at home and abroad, the laser method using the reflective and transparent strip is finally adopted to design the measurement system for eliminating the influence of clamping way and clamps on the sound field in the traditional thin-film method. In order to study the problem that the resonance of the reflective and transparent strip in the measurement frequency band causes the big measurement error at the corresponding frequencies, the vibration mode of the reflective and transparent strip is simulated, and the simulation model is verified by experiments. The simulation results are basically consistent with the measurement results of frequency responses of the strip, and the accurate prediction of the resonance frequencies of strip is realized. Thus, it is confirmed that the model has a guiding role for strip selection. The hydrophone sensitivity measurement and calibration system using laser method is developed, and calibration experiments are carried out. The error between the experimental results and the calibration results of the three-transducer reciprocity method is less than 1 dB, which proves that the test system has the capability of hydrophone sensitivity calibration and has high military and civilian values.