In the context of the acute shortage of protein substances in forages, which influences negatively the revitalization of the livestock sector, the diversification of forage production has to be achieved by mobilization, acclimatization and implementation of new crops from local flora and other floristic regions. Fodder galega, eastern galega, Galega orientalis Lam., native to the Caucasus, is a promising leguminous species, which can be cultivated on the same land for over 15 years, has been introduced to many other regions. The variety Speranţa of Galega orientalis, created in NBGI and registered in the Catalogue of Plant Varieties of the Republic of Moldova, served as subject of study, Medicago sativa – control variant. The experiments were carried out on the experimental plot of the Botanical Garden. The research subjects were 4-year-old plants, the green mass was harvested for the first cut in the flower bud formation stage. The samples were analysed to determine the content of dry matter, organic matter, crude protein, crude cellulose, crude fat, crude ash, the content of neutral detergent fibre (NDF) and acid detergent fibre (ADF), applying the standard methods used at the University of Agricultural Sciences and Veterinary Medicine, Iasi, Romania. It was determined that, in the 4th year of vegetation, the Galega orientalis plants started growing in the second half of March, 5 days earlier than Medicago sativa. Initially, the rosette with leaves developed and, after 10-12 days, shoots started forming, the growth and development of shoots accelerated during April. In the middle of May, in the flower bud formation stage, Galega orientalis plants were about 140 cm tall, while Medicago sativa plants – only 75 cm tall. The harvested green mass yield reached 5.27 kg/m2 and exceeded substantially Medicago sativa. It was found that the Galega orientalis fodder harvested during this period was characterized by a high content of leaves (55 %), but a low content of dry matter (18.1 %) in comparison with the control variant. The dry matter of Galega orientalis is characterized by optimal protein content (16.20 %), cellulose (26.85 %), minerals (7.51 %) and high amount of fats (3.41 %), it is very rich in essential amino acids (lysine, methionine, threonine, phenylalanine, leucine) in comparison with Medicago sativa. The Galega orientalis forage had cell wall content 384 g/kg NDF and 277 g/kg ADF, so it can be classified as very good quality with relative feed value 163, but Medicago sativa forage – 538 g/kg NDF and 415 g/kg ADF, relative feed value 100, respectively. The cultivation of the variety Speranţa of Galega orientalis would help solving acute problems related to the supply of qualitative green mass to feed domestic animals.