Abstract: Objective: To investigate the reasons of unsuccessful interventional treatment for congenital heart disease and the method of surgical treatment.Methods: The interventional treatment failed in 23 patients with congenital heart disease,and in 4 patients the occluder was dislocated after interventional treatment.All of the 27 patients underwent surgical treatment including removal of the displaced occluder and/or the congenital heart disease repair on cardiopulmonary bypass on the same day of interventional treatment or three weeks later.Results: The results of surgical treatment were satisfying.All patients recovered,and the heart function was in NYHA class Ⅰ.Conclusions: The indication for the interventional treatment should be strict and the size of occluder should be correct.Occluder displacement is a severe complication after interventional treatment with congenital heart disease.Once the occluder is found dislocated a more aggressive strategy with emergent earlier surgical treatment is advocated before deterioration of heart function.