This study was conducted to determine the pest species of Cicadomorpha and Fulgoromorpha (Hemiptera), distribution and densities in vineyards agroecosystems in Erzincan and Tunceli provinces. In determining the species, the impact method, sweep-net capture method, vacuum insect collector (d-vac) method were used. Surveys were carried out at regular intervals (approximately once a month) in vineyard areas in Erzincan and Tunceli provinces. As a result of this study, a total of 28 pest species belonging to Aphrophoridae (1), Delphacidae (2), Dictyopharidae (2), Membracidae (1) and Cicadellidae (22) families belonging to the Hemiptera order were determined in the vineyards of Erzincan and Tunceli provinces. Among them, it was determined that Empoasca solani (35.81%), Hauptidia cretacea (19.36%) and Psammotettix provincialis (8.49%), were the first degree harmful species in terms of distribution and density. In addition, 25 species other than these species were found to be secondary pests showing low density and distribution in the vineyards of Erzincan and Tunceli provinces.