The solution to the problem of correlation between international character and national trends in psychology on the basis of the history of scientific and practical developments in the Russian psychology in 1901 – 1950 is proposed. The results of the qualitative analysis of works reflecting internationalist trends in paedological, psychotechnical, and psychoanalytical developments are considered: translated publications, forewords and scientific reviews of foreign authors’ writings, scientific conference abstracts, and reports of international scientific congresses and conferences. The unique nature of internationalist trends in the above mentioned developments was due to specific aspects of scientific policy and public demand for scientific and practical psychological research.