Abstract: Objective To investigate the anesthesia methods for interventional surgery in children with congenital heart diseases. Methods From 1988 to 2009,1192 patients with congenital heart diseases were treated with interventional surgery. In these procedures, monitored electrocardiogram(ECG), respiratory rate (RR), mean artery pressure (MAP) and percutaneous oxygen saturation ( SpO2 ). Ketamine of 3 ~ 4 mg/kg was used via muscle injection. Results Anesthesia was done successfully in all 1192 cases. The operation duration was (124 ± 82)min and the total dose of Ketamine was ( 3.62 ± 1.18 ) mg/( kg · h). There were no anesthesia related complications.Conclusion Sufficient preoperative preparation, proper application of anesthetic drug and vital signs monitoring are critical for interventional surgery.