The measurement methods of impulse coupling coefficient,such as impact pendulum method,laser interference method,laser combined impact pendulum method,horizontal guideway measurement method,pressure sensor method,the main numerical analysis methods of impulse coupling coefficient and the influencing factors,such as laser wavelength,pulse width,repetition frequency,power density and characteristics of debris materials,are reviewed.On the basis of summarizing the influencing factors of laser ablation impulse coupling,the measures to be improved in the experimental device for measuring laser ablation impulse coupling coefficient and the research direction of the measuring device and laser emitter in the future are summarized.