Abstarct: Today, the tourism and hotel industry is facing new challenges, and most companies in these industries (especially hotels) are facing problems of reducing turnover and at the same time increasing costs. There are various reasons for this, the most important of which is that the cost of labor, food and energy is increasing every day and there is no prospect for it; To meet the mentioned challenges, working in an efficient and effective way and focusing on the full realization of customer needs is more important. Adopting a lean approach in the hotel industry will maximize hotel profits by reducing costs as well as reducing waste. This approach also increases guest satisfaction by creating more efficient operations. In this regard, 5 hotels have been studied and analyzed and the necessary analyzes have been done using Excel and Rosetta software, and finally 7 rules have been extracted and examined. According to the extracted rules, creating value for the customer, cost loss, added value, waiting time, continuous improvement process and quality of service are among the items that are most important in ranking the purity of hotels and customer satisfaction.