This phytosociological study was carried out in the steppe of Fatik Mountains in Sanliurfa, between the years 2002-2005. At the end of this study, it was underlined that the dominant vegetation type was steppe in the region and different steppe associations were determined. These were also; Festuco callieri-Teucrietum poliae ass. nova, Astragalo sfrictifolii-Salvietum sclarea ass. nova, Phlomido bruguieri-Thymbretum spicatae ass. nova, Asphodelo aestivum-Teucrietum poliae ass. nova, Cynodo dactyloni-Bromoetum danthoniae ass. nova, and Prosopo . farctae-Avenetum erianthae ass. nova. During the floristic surveys, 153 taxa belonging to 26 families and 107 genera were identified. Poaceae with 31 taxa (20.3%), Asteraceae with 24 taxa (15.7%), Fabaceae with 22 (14.4%), and Apiaceae with 13 taxa (8.5%) were the richest families.