Urban areas play important role in achievement of the aims of Strategy of EU for sustainable development. Four from 5 inhabitants of Europe, i.e. their 80% live in urban areas and their life quality is influenced by the state of urban environment. Majority of towns are affected by the basic set of environmental problems as low quality of habitable environment, enormous air pollution, emission of greenhouse gases, high traffic density and traffic jams, high level of noise, problems of wastes including waste waters, uncontrolled encroachment of towns and so called brownfields. In Europe also in the past appeared many initiatives and were accapted important documents. The EU,s 6th Environmental Action Plan (2002) initiated the elaboration of the Thematic Strategy on the Urban Environment. The definitive version of the Strategy was submitted to the European Parliament and Council in January. Its measures ought to contribute to the better realization of existing environmental policy of EÚ and implementation of legal rules on local level – by support and instigation of organs of local self-government to accept the more integrated approaches to urban management, by invitation of associated countries to support this process and to use the possibilities provided on the level of EU. The Thematic Strategy on Urban Environment touches more spheres, it covers many environmental problems. It is expected that it will contribute to implementation of tuhe priorities of the EU,s 6th Environmental Action Plan and other environmental policies including other thematic startegies.