Abstract: To minimize the environment pollution caused by the waste caprolactam and polyamide 6,the effects of ultraviolet onPhanerochaete chrysosporium(p.ch) for decomposing caprolactam and degrading polyamide 6 were studied.The results indicate thatP.chhas a good effect for decomposing caprolactam and whenP.chis treated with ultraviolet,its decomposing effect on caprolactam is enhanced greatly and it also has distinct etching effect on the surface of polyamide 6 membrane.So the microbial decomposing of caprolactam and degrading polyamide 6 byp.chcan be effected.