Winter forage pea becomes more important forage crop for haylage production. Even in unfavourable conditios (drought) this crop provides good yields of high-quality fodder. It is usually sown as a mixture with cereals. Dry matter yield of forage pea is being inreased with plant height but protein yield is being decreased due to leaves falling off of lower nodes. Research conducted on Agricultural Institute Osijek, on commercial farming crops have shown the need for denser pea stand in mixtures with late-ripening wheat without awns. Crude protein yield of pure stand pea was 1603 kg/ha (when seeded 110 seeds per m2) and of mixture with wheat (110 seeds of pea and 100 seeds of wheat per m2) was 1174 kg/ha. Protein yield of pure stand pea was sufficient for production of 26716 litres of milk per ha, of pea/wheat mixure was sufficient for 18196 litres of milk and of pea/barley mixture for 19474 litres per ha. Good yields of silage maize were achieved when pea/wheat mixture was cut till 10th May and maize (OSSK 430) subsequently seeded. Such obtained dry matter yield of maize silage in 2008 year was 7, 5 t/ha and in 2009 year 6, 3 t/ha. Winter pea/wheat mixture gave 7, 5 t/ha in 2008 and 7, 0 t/ha in 2009 year. Haylage quality was affected by dry matter content during ensiling. Pea/wheat mixture should be curred to at least 35% dry matter prior to ensiling.