The article is devoted to the problem of the influence of the factor of political Islam in the modern conditions. In order to reveal such influence, the author examines the situation in 45 UN member stat es, where more than 50% of the population adheres to Islam, tentatively subdividing these states into Islamic, quasi-Islamic and secular. His analysis shows that the influence of the factor of political Islam in the field of politics of the Muslim world, and, consequently, in the global political space, is limited. The direct impact of political Islam on political processes is visible only in 12 Islamic states with stable political regimes and secular Turkey. In all these states, except for theocratic Islamic dictatorships Afghanistan and Iran, as well as Qatar, the authorities severely suppress any manifestations of radical political Islam. The interreligious Sunni-Shia conflict exerts a significant impact on the political situation in a number of Islamic states. In 20 quasi-Islamic and secular Muslim states with stable political regimes, political Islam, if present, is only on the periphery of the political field. At the same time, in some of the states in this group, the authorities have to fight cross-border terrorist activity of radical Islamic organizations. In almost a quarter of the states of the Muslim world, the political situation is currently unstable. Herewith, one of the factors of political turbulence in these states, along with ethnic and clan conflicts, is the terrorist activities of both international and national radical Islamic groups and movements.