The aim of this paper is to explain the sustainable development of tourism and its principles and principles. The paper concludes that there are more and more indicators of unsustainable effects caused by growing and excessive tourism, therefore the existing principles and principles of sustainable tourism should have an effect on the state of excessive tourism, such as in Dubrovnik, Venice, Barcelona, etc. The examples show how excessive tourism negatively affects each destination listed, with recommendations for contributing to sustainable tourism. Destinations that have recognized the benefits of sustainable tourism are Bhutan, Peru, Jordan and others that apply the principles and principles of sustainability. In conclusion, it can be said that it is necessary to apply the sustainable development of tourism through the principles and principles of sustainability, because unfortunately the excessive number of visitors has a negative effect on the destinations.