This article considers the specifics of volunteers work with families raising disabled children. With regard to the analysis of empirical research data,the authors reveal the particular nature of interaction with parents of the disabled children, as well as features of the value-motivational structure of volunteers, are revealed. It is concluded that volunteerism is an important factor in the professional socialization of future specialists in helping professions, because in the course of acquiring the experience of social service, socially important values, socially approved motives, professionally important qualities are formed in them; a conscious self-identification in the professional sphere takes place.