There are many regional development support systems with public funds in Europe. This study focused on the diversification of public assistance programmes for the tourism sector in the EU, using the booklet “EU FUNDING FOR THE TOURISM SECTOR 2014-2020” published by the EU as a clue. Tourism in the EU has strategic importance and a broad impact on economic growth, employment, and social development. The tourism sectorʼs needs and the related range are vast and various; therefore, the programmes and sub-programmes have a wide variety. European partnerships are cross-sectoral, organizational, and regional, offering unique opportunities to address common issues deeply affecting each other. The examples of the programmes are richly diverse. Furthermore, their effects, benefits, and scope are considerably multidimensional. These programs have the original target and purpose (aim) such as environment, technological innovation, creative industry support, research promotion. At the same time, they are a multifaceted framework that directly and indirectly supports the tourism sector. The multi-layered aims increase the possibility of mutual or cross-cutting development in regions and fields. As a result, in the tourism-related various fields and sectors, diversification of development has been realized.