The aim of this study was to identify effective barriers on using renewable energy in agricultural sectors of Iran. In order to collect the required information was used from interviews with experts and university professors, documents and internet search. Data collecting tools was questionnaire. In this study, barriers such as education, technical, economic, social and regulatory were investigated. Based on research findings and using path analysis some factors such as technical barriers, economic barriers and social barriers directly and factors such as education and regulatory barriers have influenced indirectly on using renewable energy by farmers.