Legumes are one of the most important sources of nitrogenous substances for the nutrition of ruminants, not only in the form of concentrate, but also as a source of fodder for the production of silage. In the conditions of the Czech Republic, peas and beans are the most commonly grown annual legumes for silage purposes. There are also less common alternatives to these crops such as lupins. In our work, we focused on comparing the quality of yellow lupine forage with peas and broad beans. In addition to the basic parameters of the chemical composition, we also compared the digestibility, determined by the in vitro enzymatic method. The first results obtained show that yellow lupine had a lower yield of dry matter. Furthermore, it achieved a comparable content of nitrogenous substances with peas, but lower compared to broad beans.