In the article the concept of political parties’ cartelization is considered. The author describes the western analyst researches describes theoretical and methodological principals of the given concept. It is based on characteristic fe-atures of features of cartelization, negatively influencing on political transpare-ncy, the tolerant attitude to political competitors as well as on relationships bet-ween structures of the state and a civil society. On an example of the Republic of Moldova the fundamental signs descryb-ing a degree of influence of a cartelization phenomenon on national political sy-stem are analyzed. Conclusions of the author are aimed at minimization of the parties’ cartelization consequences in conditions of the further democratization of the Moldovan society.