This paper attempts to show an idea of art therapy as complex: social, psychological and cultural system. Art therapy, in this sense, is not just a therapy (in traditional sense). Due to critical philosophical and social theories art therapy, in intersectional perspective, is strictly connected with feminism, queer, critical art and postcolonial movement. The most important ideas of intersectional theory (such as awareness of multidimensional problems of minorities) are also important for art therapy which shows practical implications of art therapy’s theory. The article is concerned with art therapy as a discipline. It shows practical applications of intersectional ideas in institutional and existential perspectives of art therapist’s work. The text shows specific art movements connected with work against prejudice and stigmatization.