The purpose of the study is to examine how the apartment housing became common and how it became the main structure type of housing in Korea, as well as the social backgrounds. The study also focuses on how such phenomenon caused the housing problems which become social problems, and how new trials in terms of housing supply were performed to provide solutions to meet various housing needs of households. The purpose was accomplished by the examination of related literature since the liberation from Japan in 1945 to the early 1990s. In fact, it was uncommon to have apartment housing as the main figure of housing style. However, it became the major housing culture in Korea. Even if there have been lots of blames for apartment housing for last forty years, they were able to settle in Korea. Major reasons for such phenomenon include desperate needs for a larger quantity of housing due to industrialization, urbanization, etc.