The paper presents the research for the period 2012, 2019 and 2021 based on the analysis of 180 samples collected from the points: Brînzeni Hordinești, Fetești, rl Edineț, Codrii Scientific Reserve, Chisinau, Vulcănești, Slobozia Mare, Lopatna, Orhei, Vila Nisporeni, Nisporeni, Causeni, the surroundings of Marta and Maria Monastery, Talmaza, Ștefan Vodă, Cahul, Cocieri, Dubăsari, Horăști, Ialoveni, Plaiul Fagului State Natural Reserve, Rădenii Vechi. From the composition of the species determined in the laboratory conditions, 3 new species of staphylinids were identified for the fauna of the Republic of Moldova, Anthophagus alpestris Heer, 1839, (subfam. Omaliinae), Stenus fulvicornis Stephens, 1833, (subfam. Steninae), Quedius puncticollis (Thomson , 1867) (subfam.Staphylininae). For each species are presented the description of the aspects related to signaling on the territory of the country, the geographical distribution, the morphological and bioecological characteristics, the taxonomic classification, the positioning in the collection and the illustrative material.