The purpose of this study was to examine experiences of graduate students majoring in art therapy during field training with children of multicultural families and to explore the meaning and essence of understanding their involvement. This study targeted six graduate students in master’s degree with experience in practicing art therapy for children from multicultural families. This examination derived seven essential themes and 19 sub-themes based on Max van Manen’s hermeneutic phenomenological methodology and determined the following results. First, participants realized that adequate therapy was available when they were cautious about academic stereotypes, personal bias, and prejudice. In addition, participants experienced varying problems during field practice and realized the importance of theoretical understanding, training and supervision on practical affairs. Also, subjects understood that cooperation with mothers was difficult when issues with children were related to a foreign-born mother. Furthermore, participants found that while children’s resources and competence were hidden due to lack of educational support and emotional exchange, and they did experience art an important means and pathway for cultivating such resources and competence. Finally, participants understood that field practice experience for children from multicultural families was necessary to develop art therapy expertise and become a mature individual.