The actuality.The functioning of the pension system from Republic of Moldova is negatively affected by factors inherent in the pension system itself (inadequate pension level, high pressure of financing the pension system, its financial instability), on the one hand, and external factors of the pension system (among which is the intensified process of population aging), on the other hand, which poses risks to the sustainable functioning ofthe pension system, which should maintain an adequate level of pensions for their beneficiaries, with an acceptable burden of funding pension payments. The purpose of the studyis to develop the main directions for ensuring the sustainability of the pension system from Republic of Moldova. Research methods:monographic, analogies, comparison, statistics, etc. Research results.Specific measures have been developed to improve the pension system from Republic of Moldova, which aim to: a) increase the income from pensions and other sources and, on this basis, reduce the risk of poverty of pensioners; b) ensure through pension a certain compensation of pre-retirement income; c) strengthen the financial sustainability of the pension system, which implies its ability to fulfill its long-term obligations.