In this study to evaluate of Economic Value of Functions and Services in Naharkhoran Park use the choice experiment method and to estimate their parameters the conditional logit model and random parameters logit model have been used. Information required were collected by 339 completing questionnaires and interviewing from Naharkhoran Park’s tourists. The results showed that the most important attribute in the view of tourists is contributing to forest sustainability. The tourists’s willing to pay for attributes to forest sustainability, environmental health of the river, tourism facilities and reducing noise pollution respectively is 3567, 2219, 1145 and 2311 Rials per visit. Also age and native variables due to increase tourists’s willing to pay.