Korčula is an island in South Adriatic with rich cultural and natural attractions. Due to its many beauties, Island has attracted a large number of turist over the years. The number of tourist arrivals and the number of accomodation objects and beds is evident on the Island. The first hotel on Korčula was opened in 1871 and the first modern hotel was opened in 1912, and this period is considered the beginning of the development of tourism on the Island. Visitors come to Korčula because of the natural and cultural beauties and traditions. The specialty of the island are dances and knight games. In past years, there has been a need to plan further tourist development of Korčula. Planning began with several important projects and the most important is the Tourism development strategy of the city of Korčula in the period 2017-2022. the strategy lists the problems and shortcomings in the current development of tourism on the island and offers suggestions and plans for improvement. The information used for decision-making on tourism development are collected and carried out through indicators of sustainable tourism development. Long-term sustainability of tourism on Korčula can be achieved through planning and long-term development strategies. Planned, sustainable and controlled tourism development is imperative in achieving a balance between the economy, culture, local community and the environment. It is necessary to realize it in all tourist destinations, and especially in those where the tourism is mass and based on the sun and the sea without respecting the local community,culture and environment. Sustainable tourism development will create resources to improve the quality of life of the domicile population, encourage all-year employment, build new facilities for residents and tourists, improve living standards and encourage the construction of infrastructure that helps preserve the environment. The only form of the tourism that can last in the long- term is sustainable tourism.