A review of findings shows that Persian gardens have attracted a wide area of interests between psychologists and environment designers. The main reasons behind the attraction of Persian gardens are natural content and particular landscape configuration. To study these features, overall organization examination is employed according to psychological pattern. One of the impressive psychological patterns to evaluate the natural landscape is preference matrix which has been developed by Stephen and Rachel Kaplan. In this study, characteristics of Persian gardens are reviewed and they are analyzed according to the Kaplan preference factors (coherence, legibility, mystery and complexity). Hence, four gardens namely, Fin, Shazdeh Mahan, Eram and El Goli, with different topographies are randomly selected and have been analyzed based on the four mentioned factors. Because of the inseparable relationship of human behavior and environment, the research methodology applies psychological approach based on a descriptive – analytical method and to implement this method library documents are used. As the discussion demonstrates, concepts created from the relationship between factors and Persian gardens' characteristics are associated with coherence, legibility, mystery and complexity. It shows that elements shaping the Persian gardens have close relationship with these factors because they are important in perception of the natural environment. Based on analysis, the elements in Persian Gardens are used to provide the best psychological and aesthetic responses for viewers. Also, it can be concluded that, the quality of the material and semantic makes them more attractive.