The open-source GIS softwares have developed in recent years and become a useful supporting tool for users. These softwares may be PostGIS, an object-relational database managing system, MapServer, an open source environment development or QGIS, an open-source desktop GIS application that provides data viewing, editing, and analysis capabilities. As the softwares are open and require low cost, they can be deployed by Binh Dinh province for land and environment management.