通过使用华日光纤工艺平台技术，对人造聚氨酯微孔化处理，改变微观结构，为提高其制成品透水汽性和生物医学材料的血液相容性提供了新的思路和方法。并使用SEM微观检测手段，分析对比不同激光工艺参数对微孔的形貌、分布的影响。结果表明：随着激光平均功率、单脉冲能量和脉冲峰值功率的增加，微孔深度增加，锥度减小，热影响区减小。得出最佳加工参数为激光平均功率25 W、单脉冲能量0.8 MJ、脉冲峰值功率17.2 W。

By means of Hua Ri fiber laser technology, the micropores of artificial polyurethane were punched for the purpose of changing microstructure and coming up with a new way to improve moisture permeability of manufactured goods and blood compatibility of biomedical materials. The microtopography and distribution of micropores of polyurethane punched by different laser parameters were compared by using of SEM in order to obtain the best parameters. The results show that the depth increases and the taper and heat-affected zone of micropores minish with the increase of laser average power, pulse energy, peak pulse increasing. The best parameters are laser average power at 25W, pulse energy at 0.8MJ, peak pulse at 17.2W.