The Biosphere Reserve Východné Karpaty Mts is one of the most sparsely populated and least developed areas in the Slovak Republic. Therefore this area is very suitable for testing the methodology of ecological carrying capacity as an example of a little loaded but at the same time sensitive landscape. The methodology of the project was in harmony with the methodology of ecological carrying capacity of the landscape (Hrnčiarová et al. 1997). The procedure of evaluation was elaborated according to Miklós et al. (1997). The area of the Biosphere Reserve Východné Karpaty Mts has a high degree of ecological carrying capacity. Areas with unsuitable use are concentrated only in small parts of the territory (to 10 %) around the settlements and on the most extreme sites of mountain ridges with clear felling. The identification of the degree of ecological carrying capacity of the landscape is not the final step in solution of the landscape problems. In fact it is only a diagnosis of its values, even if it is very important. The solution of the problems needs another step – elaboration of a detailed variant proposal of ecologically optimum use of each plot of landscape ecological complexes.