Abstract: In this paper, laser polarization detection principle were expounded laser, and a new technical approach for laser fuze to recognized target using different polarized characteristics of different target on laser background scattering were invented. Experimental system were designed, the different objectives polarization test were completed. The test results are that smooth surface of metal objects have high degree of polarization, rough surface of objects have low degree of polarization. The realization scheme of polarization detection laser fuze is proposed, and the target discrimination technology is verified through prototype design.