Objective: Brugada syndrome(BS), accounting for 40∼60% of indiopathic ventricular fibrillation(VF), is one of main causes of sudden cardiac deaths(SCD) in the young. It shows high incidence in Asean countries and extreme male predominance. Patients with BS are usually asymptomatic but become fatal when the VF is triggered. Typical Brugada-type ECG shows RBBB with the elevation of ST segment in V1∼3 without structural abnormalities. The prevalence of Brugada-type ECG has been reported 0.05%(Europe)∼ 0.4%(Japan). To find soldiers who have Brugada-type ECG but asymptomatic, a ECG screening was performed to 10,182 soldiers. Method: The authors used special ECGs mounted with CDMA wireless modem. After being checked the quality, every ECG was transmitted to a server computer located in 400km far from the base. BP were recorded. Every soldier was inquired about the history of the syncope and the SCD of family member. ECGs were interpreted by 13 cardiologists who specialized in ECG. The ECGs found out positive were reviewed by another 3 cardiologists. Results: Of 10,182 soldiers, 51(0.5%) showed Brugada-type ECG. 1 was type 1, 33 were type 2, 17 were type 3. 14 had histories of syncope. 3 experienced multiple episodes of syncope. 8 had family histories of sudden death. 1 of 51 confirmed as a brugada syndrome after EP study following flecainide provocation test. Conclusions: Prevalence of Brugada type ECG in korean young male is pretty high. The prevalence of general population may be higher than the result of this study.