The article deals with the impact of international students’ social adaptation on the training process in higher educational institution. The article aims to highlight and analyze the main aspects of international students’ social adaptation as one of the effective factors that impact the quality of training. The tasks of the article are to study and characterize the features of the process of international students’ social adaptation (phases, types, components); to analyze challenges of social adaptation that international students meet; to introduce ways to overcome the problems ofinternational students’ social adaptation in higher education.General theoretical research methods (analysis, synthesis, system-structural) have been used to reach the research purpose. The result as follows: the international students’ social adaptation is a continuous process of adaptation to new conditions in training, cultural and social environment. That is, as a process in which a student adapts to different activities (learning, scientific, etc.), acquires knowledge and skills, adapts to a new way of life in society (living conditions), adopts cultural norms, values, and interacts with the social environment, develops communicative abilities (language, communication). A number of challenges (psychological, training, socio-cultural) that international students meet were identified. Effective ways such as a proper organization of training process and individual work; expanding friendly contacts with local students; social-pedagogical support; were proposed to overcome international students’ social adaptation challenges. We have concluded that the sufficient international students’ social adaptation has as a positive impact on the academic process as on students’ mental and physical state.