Objective To compare the effects of propofol-ketamine combination intravenous anesthesia with propofol or ketamine separately in transcatherer closure of congenital heart disease of children. Methods 90 childrens with congenital heart disease for transeatherer closure were randomly divided in to 3 groups : group PK ( propofol-ketamine combination, n = 30) , group P ( propofol, n = 30) and group K ( ketamine, n = 30). The changes of MAP, HR, SpO2 and RR before operation, at time of femoral vein and artery puncture and transcather closure placement,wake-up time, side effects, dosage of narcotic were recorded respectively for the three groups. Results MAP and HR during operation were lower in group PK, and higher in group K,but remained statistically unchanged in group PK. SpO2 were more than 93% in 3 groups,and without significant difference among them. As for the wake-up time ,there was no significant difference between group PK and group K, but it was much longer in group K than in group PK and group P. The dosage of ketamine of group K or group P was more than that of group PK( P 〈 0.05 ). Conclusion Propofol-ketamine combination intravenous anesthesia is effective,controllable and stable with less side effect, being superior to propofol or ketamine separately in transcatherer closure of congenital heart disease of children.