As Japan surrendered in World War II, Soviet troops were stationed in North Korea, and communist regimes began to be established in North Korea with Kim Il-sung's arrival in succession. At the same time, he established a military organization that later developed into the North Korean military, which led to the Korean War by organizing such an organization. The above North Korean troops have a relationship with the Communist Party as they do in communist countries, largely before the Korean War and after the Korean War, and leading to the Kim Jong-il and Kim Jong-un regime. However, it can be said that it is an external change, and the main factor is the status and role of the military. Despite these changes, the unchanging trend at the base is the enlisted army of individual dictators, including Kim Il-sung, and this aspect has been thoroughly applied to the relationship between the party and the military. Historical institutionalism emphasizes the fact that while the system is created or changed in the historical phenomenon of transformation, it is greatly influenced by the context of history over time. It also emphasizes that even if the environment changes and the utility of the system decreases or loses, the system can still exist due to inertia based on path dependence. This study focused on looking at and studying the party-military relations between North Korea from this point of view and confirmed that the study was meaningful.