GIS application in urban landscape ecological planning is presented on a case study of the city of Považská Bystrica. The core of the research was developing a methodology for landscape-ecological plan that consists of logical sequence of the following procedures: analysis, synthesis, interpretation, evaluation and formulation of proposals. The GIS was mostly used in a part devoted to evaluation of abiotic landscape stability and the resistance to specific processes. Purpose-made models were used and the focus was put to landscape resistance to landslide processes, water erosion and substrate and underground water pollution by rainfall.