Abstract: It becomes a new hotspot in the software development field that building software development platform aiming at application system development work which have similar functions and structure in the same field. To avoid iterant work, decrease work cost and improve work quality, a software development platform for based-on-spatial-information-applications to environment construction is studied and built which takes application GIS's kernel as core after analysis and comparison of much application systems taking spatial information as basic analytic object in the eco-environment construction field. The platform is based on the iterant information in the similar applications systems, the object oriented technique and the layer-form structure.