Recent years have witnessed a new upsurge in the development of the European legislation on new organizational and legal forms of legal persons in Europe. The article deals with issues of the legal mode of their operation. Attention is given to the specifics of legal status of legal persons of public law in legislation of individual countries, France in the first place as a citadel of effective and carefully thought out administration. Subjected to analysis is the history of emergence of the theory a legal person in France. Specified is the system of outlooks on a legal person in the comparative legal aspect. Discussed are nuances of using the term "legal person of public law" in a number of current constitutions. Studied are the issues of spreading the legal construction of legal person of public law over the post-Soviet space. Argumentation is given for need to use the construction of public legal person. Based on analysis of legal experience of foreign countries a conclusion is made that in terms of legislative regulation the formation procedure, the legal status and the legal operating mode of legal persons of public law must be determined by public law legislation whilst some general provisions pertaining to realization of their legal capacity must be governed by civil law conventions. © IDOSI Publications, 2014.