From 1996 to now, the medical cost declined, and the medical resources were utilized rationally because of the pursuance of the Taiwanese DM Shared Care Program. However, the most important health indices which represented the quality of care didn't improve obviously. The possible reasons included: (1) the indefinite execution of case management model, (2) the unjust assignment of health insurance resources, (3) the lack of uniform caring and qualified standard, (4) the lack of healthcare indicator system. If the above problems can be improved, it will make full use of the DM Shared Care Program.