输精管绝育方法仍是当前男性节育的主要措施，目前颇有影响的3种绝育方法是直视钳穿输精管结扎术（NSV）、输精管注射粘堵法（CVO）、输精管注射栓堵法（MPU）。先前由于没有采用统一的标准，影响了对3种绝育方法的有效性、安全性、可复性的评估。为此，作者按统一标准对3种方法进行前瞻性比较研究，结果表明，NSV节育有效率为98．00％，CVO为89．61％，MPU为93．87％，并发症的发生率经术后2年随访显示3种方法无明显差异。 The method of vas deferens sterilization is still the main measure of male birth control. Currently, three sterilization methods that are influential are direct viselectomy (NSV), CVO (vas deferens), MPU (vas deferens) . Previously, the absence of a uniform standard affected the validity, safety and reproducibility of the three sterilization methods. To this end, the authors according to a unified standard prospective comparative study of the three methods, the results show that, NSV birth control efficiency was 98.00%, CVO was 89.61%, MPU was 93.87%, the incidence of complications by Two years after follow-up showed no significant difference between the three methods.