Forest and range managers were surveyed in order to explore their perception about factors improving the sustainable forest management in Iran. The methodology used in this study involved a combination of descriptive and quantitative research. The total population for this study was 154 manager of forest, range and watershed organization in which 105 responded to the questionnaire. Based on the perception of the respondents, providing material incentives to managers and knowledge about sustainable forest management caused 64% of variance on the perception of the respondents about improving sustainable forest management in Iran.