The North Korean regimes of Kim Jong-il and Kim Jong-eun have been maintained despite the continued ‘triangular crises’ due to the social relaxation, deepening financial crisis and external sanctions. In particular, the three generation succession was achieved in the regime of Kim Jong-eun despite the short period of succession, which has been stabilized in its fourth year. Nevertheless, it is a premature decision to expect the regime of Kim Jong-eun will be stabilized for a long term, given the limits of the North Korean regime. Therefore, it is required to review the structural characteristics and the maintenance mechanism of the regime to figure out the ground for maintaining the North Korean regime. Therefore, this study reviewed the conditions of the regimes of Kim Jong-il and Kim Jong-eun and the regime maintenance mechanism system based on the general systems theory. The regime of Kim Jong-il used the internal economic crisis and the subsequent social crisis as economic ‘adaptation’ and social ‘control’ but mainly had the attitude to overcome the crises by ‘taking advantage’ of the external trends. On the other hand, the regime of Kim Jong-eun has maintained the regime by focusing on economic ‘adaptation’ and social‘ control’ and ‘taking advantage’ of the external trends as a secondary mechanism.