Abstract: To improve the ability of optoelectronic countermeasure and defensive and offensive capabilities,the methods of anti-detection should be studied as well as the cat-eye active detecting technology.Influence factors of anti-detection ability were qualitatively and quantitively analyzed by numerical simulation based on the reflected wave power.The simulation results show that reflected wave power is changed with the changing of incident power of detector,optical window area of receiver system,transmittance of emission system,divergent angle of incident laser,diameter and focal length of objective lens and maladjustment of reflector,and it is influenced by diffuse background and system operating wavelength.The research of influence factors provides theoretical basis for anti-detection strategy.