The sudden and unexpected war in Ukraine led to a large flow of citizens displaced abroad. Almost half of them are preschool- and school-age children. The peculiarities of their adaptation to the educational environment of another country necessitates the study of the main aspects of adaptation in these conditions. The aim is to identify the psychological and pedagogical aspects of adaptation to the educational environment of another country of school-age refugee children. The research included the use of surveys, questionnaires (Strengths and Difficulties Questionnaire, SDQ), analysis of official information sources. The research found that the studied 203 children relocated to other countries have high rates of adaptation to the educational environment. Their performance indicators improved, high satisfaction with school, teachers, and relationships with classmates was revealed. The SDQ found a low overall level of adjustment difficulties (M=16.3, SD=1.9). The study showed that, in general, displaced Ukrainian children have high rates of adaptation to the educational space of other countries. They are emotionally stable, sociable, moderately hyperactive, have no behavioural disorders, and have high prosocial behaviour. The obtained results can contribute to the development of a programme to support Ukrainian children of immigrants to the educational environment of other countries, which will contribute to their psychological and pedagogical adaptation to it.