The abandoned mines of Goianul Nou are located in the central area of the Republic of Moldova (47°07'18 N", 28°55'16" E) near the mines of Cricova. It represents an underground shelter for chiroptera during the active period, as well as during the hibernation period. It is an area little influenced by human activity, remote from localities, being surrounded by forest strips with thickets, the mines were investigated for the first time, previously it was not mentioned in the literature. Classical methods of identification and collection of individuals were used in the research: net, camera, gloves, ultrasound detector and caliper. In April 2016, 4 bat species were identified in the Goianul Nou mines: M. daubentonii 36.36%, M. bechsteinii 36.36%, Rh. hipposideros 18.18% and M. mystacinus 9.10%. A small population was recorded with a relatively low diversity for this period, because the spring was with high temperatures, a phenomenon that increased the awakening of bats from hibernation and the commuting between roosts in the surrounding canyons. In 2020, the research took place in mid-September. The temperature outside was 25°C, clear sky, inside the temperature was 18°C humidity 65%. 35 bats from 6 species were identified: E. serotinus 40%, M. daubentonii 37%, M. becshtenii 8%, M. dasycneme and P. auritus with 6% each and M. myotys 3%. All the bats were found solitary near the entrance to the mine, except for a few individuals, located deeper at about 70-80 m. In 2021 the fights took place in March, 26 individuals from 5 bat species were identified: M. daubentonii 38.46%, M. myotis 30.77%, M. blythii 7.69%, M. becshtenii 19 .23%, P. austriacus 3.85%. We note a relatively high diversity with a small numerical herd due to spring migrations to maternity shelters. The most numerous were individuals of the species E. serotinus in 2020, which in 2016 and 2021 were not identified. Greater diversity is observed in autumn in September when hibernation preparation takes place compared to spring when bats disperse to other roosts. The species M. myotys was identified, which has not been identified on the territory of the republic since the last century, a strictly endangered species. Six out of seven identified species are included in the Red Book of Moldova