Cardiac arrest during spinal anesthesia are considered rare, but are actually relatively common. We present a case of severe bradycardia and asystolic cardiac arrest during spinal anesthesia in young healthy patient scheduled for minor surgery. About 25 minutes after the spinal anesthesia, severe bradycardia and cardiac arrest suddenly occurred. The patient recovered completely after cardiopulmonary resuscitation with Trendelenburg position, rapid hydration, epinephrine administration, manual ventilation with 100% oxygen, and external cardiac compression. Anesthesiologists should be aware of the potential for this unexpected critical complication.