The state of knowledge of Thysanoptera in Polish parts of the Sudety Mts. and the Carpathian Mts. is presented. Up to now 41 thrips species have been noted from the former and 125 from the latter mountain chain. From among 128 listed species Oxythrips tatricus is regarded as Carpathian endemic and Thrips trybomi, Haplothrips alpicola, H. alpestris, H. propinqus are connected with mountainous regions; additionally T. brevicornis and T. vulgatissimus have Boreo-Montane range.