Tourism today, more than the economic point of view, is presented as an inevitable and necessary social activity, and an important share in the national income is meant for it, and the planners and policy makers look at it as one of the most important axes of the national income. In the last few decades, the prosperity of this activity and the movement that this set of human activities can have on the economic, cultural and social sectors cannot be hidden. According to its geographical environment, each region has different talents and attractions that require proper management in order to develop and achieve a sustainable competitive advantage. Considering the importance of the topic, the purpose of this research is to assess the potential of geo-ecotourism and its development management in Kazaj village, Hashjin city using Brilha model; In order to achieve this goal, the main data of the research is made up of documentary information, interviews and field observations. In the Braille method, scientific, tourism and educational values, the method of evaluating land diversity areas and calculating the total points have been examined in these areas. The results show that, the village With a total score of 220 in the tourism value of land diversity area evaluation method, Kazaj has geo-ecotourism potential and has the power to attract tourists. Many development planners also refer to the tourism industry as the main and important pillar of sustainability, and in other words, the relationship between tourism and planning can play a special role in urban and rural development and deprivation. In the village of Kazaj, despite the obtained tourism potentials, the research results indicate that the expansion of geo-ecotourism potentials in the village of Kazaj increases employment, and also causes sustainable rural development.