A golden-ringed dragonfly (Odonata, Cordulegastridae) is represented by two species Cordulegaster bidentata and C. heros in the territory of Slovakia. As for both species, we evaluated hypsometry of their occurrence, the habitat preferences and the structure of the odonatocenoses. The dataset for C. bidentata species consists of 103 sites and C. heros species is from 124 localities. C. bidentata is evenly spread in the mountainous areas of Slovakia. C. heros has had the discontinuous occurrence in the Male Karpaty Mts. and Slovenské rudohorie Mts. The average altitude of localities of the C. bidentata is 563.3 m a. s. l., nevertheless for the C. heros it is 304.5 m. The significant habitat factors of examined species (p = 0.05) are altitude, the forest margin, the fens with watersurface, epirithron and hyporithron respectively. The golden-ringed dragonfly has been examined together with other 15 species, but only on peat marshes there were 13 nonreproduced ones. The Cordulegaster heros larvae occur together only with C. bidentata and Calopteryx virgo larvae. Our results proved the published habitat preferences of C. bidentata and C. heros in Slovakia.