目的　探讨应用显微外科技术修复尿道下裂成形术后尿道皮肤瘘的治疗效果。　方法　按三种方式显微外科修复阴茎部尿道皮肤瘘37例49个瘘口:瘘口间断内翻缝合23例,横向旋转皮瓣复盖10例和带蒂阴囊皮瓣转移4例。　结果　显微外科修复一次手术成功率达89.8%(44/49),3例延期愈合,1例再次手术治愈。　结论　显微修复治疗组织损伤小,一次手术成功率和累积成功率高,明显优于传统性宏观下瘘口修补。 Objective To investigate the therapeutic effect of microsurgery on urethral skin fistula after hypospadias operation. Methods Thirty-seven fistulas of 37 patients with urethral skin fistula were repaired microsurgically in three ways: 23 cases of interrupted varus sutures, 10 cases of transverse flap and 4 cases of pedicled scrotum flap. Results The success rate of microsurgery in one operation was 89.8% (44/49), 3 cases were delayed healing and 1 case was cured by another operation. Conclusion Microsurgical repair of tissue injury is small, a successful rate of operation and cumulative success rate, significantly better than the traditional macro-fistula repair.