This study was carried out in Konya Soil, Water and Combating Desertification Research Station in 2015 in order to determine the effect of humic acid applications in different amounts on the development and quality properties of some potato varieties in Konya ecological conditions. Three different potato varieties (Agria, VR808, Brooke) and four different humic acid doses (0, 3, 6, 9 L da -1 ) were used in this study, which was established in three replications according to "The Randomized Complete Block in a Split Plot Design". In the study, large, medium, small, discarded tuber yields per decare, protein content, specific gravity, chips yield, oil holding capacity of chips, dry matter content, starch content were investigated. It was determined that there was a significant increase in humic acid applications in large, medium, small and discarded tuber yields per decare. Oil holding capacity of chips was between 32.9 % and 46.2 %, starch content was between 11.7 % and 17.3 %, and the differences between humic acid applications were found to be statistically significant for these properties. In terms of chips yield and protein content, statistical significance was not determined among the applications. Considering all the properties examined, it was determined that increasing humic acid applications positively affected the yield of large, medium and small discarded tubers per decare and significant variations were obtained among some quality properties of the varieties.