AIM:To evaluate an effective way of treating obstruction of lacrimal duct.METHODS:Totally 73 cases(73 eyes) of obstruction of lacrimal duct were treated by high-frequent electrolacryocystoplasty combined with silicone intubation.They were followed up for 6 months.RESULTS:It was showed that the curative rate was 80.82%,10.96% was effective,8.22% had no effect.CONCLUSION:High-frequent electrolacryocystoplasty combined with silicone intubation is safe and effective to treat obstruction of lacrimal duct.