The role of social worker has various of facilities specificity, but executes role of broker, advocator, teacher, counsellor and clinic therapy, case manager, work manager, worker administrator, public administrator, social change agent, expert. In general the sphere of social worker demonstrates social welfare civil office, social welfare complex center, social welfare facilities, hospital, social welfare organization, university, research institution etc. In developed country The sphere of social worker will be school social worker, industrial social worker, military social worker, long term care social worker, venture social worker, etc. In korea social workers requirement enforcement of juristic qualification, institution of special social worker, and sanction introduction of education course in empower training, system of social welfare practice, activation of special organization.