Losari is one of the sub-districts in Brebes Regency which has an area of 12,754.86 ha consisting of 8,955.87 ha of paddy fields and 3798.86 ha of non-paddy fields and can be occupied at 2-5 meters above sea level. Losari District consists of 22 villages have different widths and heights. This is quite difficult for the Losari Subdistrict government to manage existing field data. With the existence of a Geographical Information System, citizens and the local government of Losari District can manage field data quickly and in detail.
Data collection methods used in this study are the literature and observation methods, while the method for system development uses the Lifecycle System Development (SDLC) method which is a classic combination used to develop, use and use information systems.