Sick sinus syndrome(SSS) is an important condition for anesthesiologists to recognize. The clinical manifestations of the SSS may be quite difficult to recognize as they may be intermittent, protracted, and multifared. SSS is defined by severe bradycardia and by sinus pause of arrest with escape. An imp-ulse originating in the sinus sode that is blocked before it can depolarize the atrium is referred to as sinoatrial(SA) lock. Physiologically, most signs and srmptoms result from hrpoperfusion of vital sign. The brain, heart, and kidneys are most prominently affected. While it can be mild, producing syncope, it is a frequent symptom and requires permanent pacemaker implantation. We experienced one case of anesthetic management of SSS using spinal anesthesia.