It is necessary we emphasize a social worker's experience before anybody who would like to have upper certificate of social welfare. Also, it is required to revise a law getting first and second certificates for social workers. It is considerable that qualification practicum system of socal work through agencies related the education of social welfare. And, we need to open a new curriculum positively to face current social changes. For instance, a subject related multi-cultural families increased continuous these days, and NGO(Non Government Organization). They also are worth a organization of subject that make us able to learn at any universities.