Most problems of the turistical activities by space and environment are repercussions of uncordinated, unplanned and wild development of tourism. With the complexity in mind of carrying out the tourism in harmony with the sustainable development, the negligence of many important factors such as spatial development, preservance of natural and cultural resources, development of comunal infrastructure and sociocultural relations is not uncommon. This is direct byproduct in order to achieve much bigger economical use at the expense of environment, which is one of the most important components for carrying out the tourism on some territory. Therefore, the subject of this exploring thesis is management of tourism development on the principles of sustainable development due to the extremely massive and seasonal nature of tourism in the area of Istrian County. In this thesis it will be explored how the Istria responds to these problems.