The article is devoted to the problem of the correlation between the foreign language acquisition effectiveness and personality traits, which are analyzed on the basis of Five-Factor model (P. Costa and R. McRae) and System-Functional model (A. I. Krupnov). The empirical study hypotheses were tested that the success of studying English by students is related to the Openness and Conscientiousness of the Five- Factor model, as well as to the variables from the instrumental-dynamic subsystem of initiative, considered within the framework of the System- Functional model.