Abstract: Red deers that show spread small and different locations are mammalian species that need protection and planning. This study was carried out in order to determine the factors affecting the distribution of the species of Red deer (Cervus elaphus L.) in the Akdağ district, to modeling and mapping the distribution of the species. For this purpose, presence-absence data and site factors for Red deer species were collected from 116 sample areas in Akdağ district. In present study, the environmental variables that will be used for modeling in the statistical process were determined firstly. The digital elevation model of the study area is created in ArcMap 10.2 software. Then the related variables are formed Elevation, Radiation index, Heat index, Topographic position index, hillshade index, settlement-distance, Vegetation type, Ruggedness Index and Roughness Index respectively. After determining the variables, Classification Tree Technique (CTT) was used to model the distribution of the species. The training data set AUC value of the model was obtained as 0.96, while the test data set AUC was obtained as 0.68. The model obtained as a result of modeling is formed by 5 variables. The variables that contributed to the model creating were heat index, settlement-distance, hillshade index, roughness index and radiation index respectively. These variables were spread with the help of the formula and habitat suitable map was obtained. As a result, the habitat preferences of red deer in Akdağ district were found to be consistent with the literature. Keywords: Environmental Variable, Habitat Preference, Habitat Suitability Modeling, Red Deer, Classification Tree Technique