The problem of the formation and development of motivation to learn occupies one of the central places in educational institutions. Its relevance is due to the priority areas of development and modernization of education. In the article, the authors analyzed the motivation for learning a foreign language, the factors that affect it. Analysis of the literature revealed two main factors that can increase students' motivation to learn a second foreign language. The authors examined the maximum effectiveness of increasing student motivation to learn a second foreign language as a synergy of three components: the teacher's personality, which can create a safe motivating environment, focusing on other people's culture and the connection between two foreign languages. The authors proposed psychological and methodological tools to increase the motivation of students to learn two foreign languages. A distinctive feature is the synergy of 3 components (personality of the teacher, safe motivating environment and connection between two foreign languages). This toolkit was tested in 2 stages during 2019-2021 and showed its effectiveness.