The main purpose of the article is to build a new multidimensional conceptualization of ‘supranational democracy’ in comparative perspective of national democracy and contribute to empirical research. It has to be remembered, however, that on the supranational level it is more difficult to achieve democracy than on a national level. Author went towards identifying the constituent components of the concept of ‘supranational democracy’ and the sources of this phenomenon in the European Union because democracy can have its natural environment not only in the nation-state, but also beyond the state. The theory of supranationalism will be the paradigm of the analysis, but in combination with Multi-level Governance (MLG) and theory of democracy, which is a particular point of reference and a classic reference in the process of explication. This article provides a new approach to the theory of democracy and postulates to integrate a new type of democracy and traditional concept of democracy.