The space-formation, construction mechanism, and facility contents of Taiwan salt-factory community was mainly affected by the establishment and implement of salt monopoly system from the monopoly bureau of Taiwan Governor General Office during Japanese occupation period. It also had been affected by the private investment of industrial salt field and construction of new-style factory since 1930. In early and middle period of Japanese occupation, Taiwan set up the places in which was influenced by the adjustment of government organization and the establishment and implement of monopoly system according to the individual differences of appointed selling points and salt production areas. This research was aimed to explore the relevant factors which affecting the community space-formation mechanism. This research investigated the slat government system of salt industry production and near-by area, but the research would not investigate how the salt was distributed to retail stores. The research used literature reviews, historical data and field study to explore the monopoly bureau building-up system and relevant influential factors during Japanese occupation period. It attempted to inspect all the influential factors concerning to the gradual space-formation of factory community that belonged to salt industrial village through time accumulation.