This study show that gender, educational level, age are absolutely no effect on public opinion to maintenance or abolition of National Security Law. And this study show that happiness and national pride as sub factors of private conviction and attitude are absolutely no effect on public opinion to be opposed to abolition of National Security Law. But it show that people of conservative temperament are more opinion to be opposed to abolition of National Security Law than liberal. And increases with distrust towards the leading men of Blue House and Government and increases with government s handling of menace to our national security failed, there are more favors the abolition of the law. This result can understand as because public to be reminded the memories of past that National Security Law are only a means to achieve and maintain power. Therefore, we broke off National Security Law close links with political power. For clearly established public attitude about maintenance or abolition of National Security Law, we need to construct differentiated policies and strategies with compounding of public conservative or liberal temperament, trust level towards the leading men of Blue House and Government, evaluation about government s handling of menace to our national security.