A sustainable lifestyle refers to a way of living that reduces the consumption of natural resources and pollution while supporting fair socio-economic development. Despite the increasing environmental awareness, there is a significant gap between people's knowledge and practical behavior, especially among students. Previous research in Iran has mostly focused on specific areas, whereas Zanjan Province, due to its unique characteristics, requires local investigation. This study seeks to analyze the concept of sustainable lifestyle from the perspective of Zanjan students. The present research analyzes sustainable lifestyle from the viewpoint of students at universities in Zanjan. Data were collected and analyzed using semi-structured interviews with 14 students, and the analysis was conducted according to the "Braun and Clarke" framework. The credibility of the research was ensured through methods such as participant validation. The limitations of the study included geographical constraints and subjective interpretation of the data; however, control measures were taken to mitigate these limitations. MAXQDA 2018 software was used for data analysis. The findings revealed that seven main categories contribute to a sustainable lifestyle with an emphasis on the tourism of students at universities in Zanjan: 1. Environmental protection and sustainability; 2. Economic development and support for local communities; 3. Responsible and optimal consumption; 4. Education and cultural awareness; 5. Respect and cultural coexistence; 6. Social participation and justice; and 7. Use of clean and innovative technologies. The research highlights the need for comprehensive sustainable tourism policies that engage local communities, promote education, invest in clean technologies, and foster collaboration among stakeholders for a greener future.