Abstract
By the semi-standardized interview method, I interviewed seven staff of continuous Working Support Institutions of Type B in A prefecture. I studied that QWL(Quality of Working Life) depends on how to match the approach of staff and persons with mental disabilities. I newly studied that it is important for staff to contact with mental disabilities like the intimate friends each other ,and also studied that the nature of work of mental disabilities at Type B must be considered not only as that of the worker but also as that of home. And I also studied that the improvement of QOL of persons with mental disabilities and that of QWL of them complemented each other.