Saxicolous lichens with foliose character offer a unique microhabitat for oribatid mites. This special microhabitat with its highly variable temperature and humidity conditions only can be permanently colonised by drought-tolerant organisms. The lichens are not only living space for this animals but also food source. Whereas a large number of publications exist describing the coexistence of oribatids and lichens in general, comparative, small-scaled studies are lacking dealing with the diversity and habitat preference of lichenicolous oribatids in subalpine and alpine habitats. Therefore, the aim of this research was to survey the oribatid fauna and their associations with three saxicolous lichen-species (Parmelia saxatilis, Umbilicaria deusta, and U. cylindrica). The investigation area was located in the Styrian rim mountains (Handalm). The fieldwork was done in summer and autumn 2014. In each season, 15 samples of each lichen-species were taken. The size of a sample at each site was about 100 cm. 5.380 adult oribatid mites were recorded, representing 72 species. Parmelia saxatilis contains 55 species, in contrast to Umbilicaria deusta with 37 species and U. cylindrica with 18 species. In addition, the number of the individuals represents this trend. Apparently, the morphology of the lichen thallus influences the diversity of the oribatid mites. The genus Parmelia and Umbilicaria also differ in the composition of mite species. The eudominant species in Parmelia saxatilis samples are Zygoribatula exilis and Oribatula interrupta as well in summer as autumn. At the genus Umbilicaria the eudominant species are O. interrupta, Camisia invenusta and Provertex kuehnelti. Some species of oribatid mites occur randomly and others show a strong specialisation to the habitat. A remarkable result of this study concerns the fact that species with different ecological requirements coexist in the same microhabitat. Trichoribates monticola represents the first record for Styria.