The paper aims to reveal specificity of aesthetic taste evaluation in classes on the history of costume within the additional education system. The authors examine the role of senior teenagers’ aesthetic taste while studying the history of costume, justify criteria to evaluate aesthetic taste, develop tools to assess students’ level of aesthetic taste relying on pedagogical experience. Scientific originality of the study lies in the fact that the researchers propose methodology to evaluate aesthetic taste of students studying the history of costume. The research findings are as follows: the authors clarify the notion “aesthetic taste”, justify criteria to evaluate aesthetic taste (aesthetic knowledge, aesthetic perception, aesthetic assessment); develop a model of aesthetic taste formation in senior teenagers while studying the history of costume within the additional education system.