Abstract As rising prices and decreasing availability are characteristics of some kinds of feed-imports like concentrate feed, more and more emphasis is put on high yields and qualities of on-farm produced feed from permanent grassland. As a consequence, grassland management has partly been intensified within the last few years. Especially in areas with sub-optimal climatic or soil conditions this led to some negative changes of the plant community composition. To escape that vicious circle grassland restoration might become necessary. The aim of this work was to show the impact of grassland restoration on plant composition, dry matter-, crude protein- and energy yields of permanent alpine grassland. An experiment was designed in co-operation with HBLFA Raumberg Gumpenstein and situated in northern Styria (Austria). The trial consisted of nine treatment combinations. Three re-sowing treatments (no re-sowing, re-sowing with mixture for intensive production, re-sowing with Lolium perenne) were either not fertilised, or fertilised with 120 kg N ha-1 year-1 or 170 kg N ha-1 year-1. The plant community composition, as well as the average dry matter yield (dt DM ha-1), crude protein yield (kg XP ha-1) and energy yield (GJ NEL ha-1) were assessed during the years 2004 and 2005. As the intensively fertilized combinations showed the highest yields and best plant community compositions in both years, it was concluded that especially the especially the different fertilization levels had major impact on each of the observed parameters. As there are just few scientific papers related to grassland restoration of alpine grasslands, it is of major importance to advance scientific work in that field to enable farmers to realize the high potenzial of alpine grasslands.