The research aims to understand the process of how a Colonial Japanese military facility, build in the Second World War in Taiwan, been transformed to KMT military family housing. In September 2009, the Taiwan Ministry of National Defense and the Council for Cultural Affairs announced the "Regulations for the preservation, selection and review of old military family village "; In March 2012, the Ministry of National Defense announced 13 sites for the preservation of military family villages, of which 9 were the sites the Japanese military facilities during the Second World War. These Japanese military facilities have been transformed to KMT military family residential use after War. One of them is Jianguo New Village in Huwei. The research objectives are: (1) To understand the process how the World War 2 Japanese military facilities been transformed to KMT military family residence. (2) To explore the meaning of the earlier military facilities been transformed to later Huwei KMT military residence. The research method is to conduct an on-site survey, depth interview and inductive analysis. The research summarized two key findings: (1) The original planning and its transformation of Huwei military facilities correspond to the practical demands of combat during war. (2) After War, KMT military family built extensions into (or onto) the original buildings and organically transformed to livable space.