Uzbekistan; Tianshan. [in Russian with English abstract: ] The article presents information about the taxonomy and ecology of lichens in the Karatepa mountains. According to the conducted studies, 10 families of the Lecanoromycetes class (Parmeliaceae, Ramalinaceae, Megasporaceae, Physciaceae, Teloschistaceae, Peltigeraceae, Collemataceae, Candelariaceae, Umbilicariaceae, Physciaceae), 1 family of the Eurotiomycetes class (Verrucariaceae) and 1 family Lichinaceae of the class Lichinomycetes were identified, 18 groups and 23 species were noted as widespread. The taxonomic analysis and ecological characteristics of the identified species are presented. Keywords: lichen, lichenomycota, epilite, epigee, epiphyte, epixyl, epibriophyte, tallom, photobiont, mycobiont.