Social and economic development requires financial resources which are impossible to provide without the investment attractiveness evaluation. The distribution of investments across the territory is highly uneven. The sustainability of the investment distribution between regions allows us to claim the laws of the territorial organization of investment activity and the existing investment climate of the regions. The investment attractiveness assessment is the point of interest to authorities, investors and local business communities. The ratings of the investment attractiveness and the investment climate of the regions are worked out by different researches, consultors and agencies. The results of these studies are very contradictory. The article is devoted to the comparison and analysis of the region investment attractiveness, to the problems of a conceptual formation. The paper consider the general principles and individual issues of the carried studies as well as the approaches and methods of the assessments.