Abstract： Objective To investigate the effects and values of extracorporeal membrane oxygenation (ECMO)in treating patients of cardiac arrest.Methods Between June 2002 and July 2007,16 cases of cardiopulmonary resuscitation were treated by ECMO in our hospital,including male 10 cases,female 6 caseB.Interior iuguhr and femoral intubation were applied to these patients as well as centrifugal pumps and heparin-besmeared conduit.The support time of ECMO was 8 to 73 hours with an average of 19.We closely observed blood pressure and blood oxygen during the whole treatment.Results After ECMO treatment,mean arterial pressure rose 10 min and one hour later,it even got higher(P＜0.05).On the other hand,CVP dropped at once and lower one hour Later(P＜0.05).Besides,hypoxemia improved in a shot time,while arterial partial pressure of oxygen(Pao2).Oxygen saturation of blood increased clearly(P＜0.05),lactive acid of arterial blood decreased significantly(P＜0.05).Conclusion ECMO provides hearts with effective blood circulation,improves hypoxemia and oxygen metabohzation gready.Moreover,it provides brain with stable oxygen-mixed blood thus was good for cardiopulmonary resuscitation.