Cardiac arrest during pregnancy is an uncommon event, occurring only about once in every 30,000 late pregnancies. Survival from such an event is exceptional. This case involves sudden cardiac arrest of a 32 weeks pregnant woman. The patient was found at unresponsive state and transferred to emergency center by EMS. At arrival, her EKG rhythm was asystole and we had no patient information. Upon initiation of ACLS, abdominal ultrasonography was done and we detected a fetal heart beat. Timely emergency caesarean section delivery was done and the 1-minute APGAR score of neonate is 0. After endotracheal intubation and respiratory assist, 3-minute APGAR score was recoverd to 3 and neonate was admitted to neonate ICU. The mother did not responsed to resuscitation efforts. Physiologic and anatomic changes occur during normal pregnancy, necessitating a modification of standard BLS and ACLS methods for successful resuscitation. When arrest does occur during the latter part of pregnancy, perimortem caesarean delivery may improve the outcome for both the fetus and the pregnant woman.