In this study, a focus group discussion (FGI) was conducted through Zoom for five managers of the Independent Living Center for the Disabled and the Welfare Center for the Disabled, which mainly provides personal assistants services in Seoul, Gyeonggi, Incheon and so on and derived research questions and key topics through thematic analysis based on semi-structured questionnaires. As a result of the analysis, difficulties in managing the quality of services due to heavy administrative workload of the personal assistants services organizations, avoidances of severe disabilities due to differences in labor intensity, differences in the management guideline of illegal supply and demand, lack(absences) of regular monitoring in the environment where abuse occurs, and problems in training and training of personal assistants were revealed. Based on the above research results, the policy improvements of the personal assistants services system for case management based on the rights of persons with disabilities are as follows. First, user education is mandatory. Second, it is a measure to stabilize the employment of personal assistants services, third, regulations related to illegal supply and demand guidelines and regular guidance, and fourth, the reorganization of services focused on users, such as the personal budget system. Finally, quality management of services should be carried out through training to strengthen the capacity of personal assistants and prevent abuse.