Today, regional integration and globalization have added new dimensions to the problems of violence, religious extremism and terrorism that attract a lot of attention in the academic community of many counties. A polyconfessional and polyethnic state, Kazakhstan, where various trends of world religions are inevitably present, is especially aware of the problem of religious extremism. In these conditions, interconfessional relations as a guarantor of internal and external stability in our republic is one of its most important problems. This article presents the aspects related to the religious environment and threats of religious extremism in Kazakhstan and outlines feasible solutions.