Aim of the methodology is to recommend to the agricultural public criteria for the selection hybrids of maize silage. The introduction describes the basic characteristics of maize. In subsequent chapters describe the factors, for example. the digestibility of NDF content and starch degradability, palatability, ensilability, earliness, rate of maturation of plants, stamina, the date and way of the harvest. On the list of factors which are selection of maize hybrids for silage important, follows information concerning the nutritional and fermentation indicators. The fundamental part of the methodology is the recommended method evaluation of hybrids,including several examples.