The Institute of the Landscape Ecology (ILE SAS) is since 60-ies of last century one of the leaders in applied research and its transfer to the planning. The landscape ecological planning LANDEP, as well as its supporting methods penetrated both the legislation and the practice. That development should be described in several periods. The 60 – 70-ies were the years of the searching the suitable methods for implementation on one side, and, searching the ways of penetration of other side. The 80-ies might be ear-marked as the golden age for both the theoretical development and also for the penetration to the planning practice, the age of big projects. The decade after the political changes in 1989 might be marked as the decade of the changes in consumer system of our results rather than in methodical changes. The age after the turn of the millennium is a very vulnerable period with both positive and negative phenomena. The destiny of the research results of the ILE SAS was decisivelly inflenced by an intensive penetration of our ideas to all the politics, decision making process and legislation. The oscillations within the institutional tools signifiantly inflences also the role of landscape ecology in real practice