“Functionalism… holds that social phenomena persist if they contribute to social stability.” (Brym and Lie 2012:5). Military culture plays a crucial role in promoting social stability and harmony. First of all, the value of military culture is one of the most precious social goods. In everyday life, “loyalty” is not specific to loyalty to a particular organization. “Loyalty” is a broad concept. It can be generally understood as integrity, because integrity means being faithful to the promise. Therefore, from this perspective, this value is useful for improving social integrity and a sense of social security. Secondly, the military subculture has improved military transparency towards society. It also increased the army's understanding of society and overcame the army's strangeness. Through military training, this subculture increased opportunities for people in contact with the military, effectively reducing the distance between the military and society. The military subculture not only promotes social cohesion, but also attracts a large number of exceptional talents to join the army. This subculture provided stronger power to the military