In the article, the authors describe the introduction of blended learning into the educational process in Ukraine during martial law. The authors define the concept of "blended learning"; it is noted that in the process of blended learning, students spend part of their time in traditional classes with a teacher, and part of their time completing assignments online or at other times and remotely. The main risks that arise in the process of blended learning in higher education institutions in Ukraine are indicated. In the course of the study, a survey was conducted among students of higher education institutions located in different regions of Ukraine -at the