Objectives: Homograft or bioprosthetic valve have been preferred in pulmonic position in patients with congenital heart disease. However, unsatisfactory results of these valves in durability make revival of mechanical valve these days. The aim of this study is to investigate long- term outcomes of mechanical valve implantation in pulmonic position. Methods: Between October 1988 and February 2011, 37 patients underwent 38 mechanical pulmonary valve replacement (PVR). The records were reviewed retrospectively. There were 27 males (73%) and 10 females (27%). Median age was 13.5 years (range, 7 months to 23 years) and median prior operations was 2 (range 0 to 5). Tetralogy of Fallot (including pulmonary atresia) was the most common diagnosis (n=32). Median valve size was 23mm (range 17 to 27mm). Median follow-up duration was 24.6 months (range 1.3 months to 22.5 years). Events were defined as mortality, reoperation, thromboembolism and bleeding. Results: There was no in-hospital mortality. There were two late deaths (one heart failure and one traffic accident at postoperative 10.8 and 103.9 months). Excluding 1 patient who died of traffic accident, survival rate was 97%, 97% and 97% at 1, 5 and 10 years. Freedom from thromboembolic and bleeding events was 91.7%, 91.7% and 91.7% at 1, 5 and 10 years. There were two reoperation at postoperative 81.3 and 122.6 months. Freedom from reoperation was 100%, 100% and 83.3% at 1, 5 and 10 years. Conclusions: Durability of mechanical valve in pulmonic position was excellent. Thromboembolic or bleeding events due to anticoagulation are rare. In growing patients who need PVR, mechanical valve could be an attracting option.