The purpose of this study aimed to construct the reliability and validity of the screening assessment of self management for IDDM patients. A quantitative research method was employed in the study. One hundred subjects were recruited from the participants of physical examination activity held by Kang-Tai foundation in 1992. Assessment forms were completed by clients or their family members, and were also assessed by murses using with a semi-structured interview method. The inter-rater agreement of nursing specialists was 0.94(n=25),the test-retest agreement was 0.88 form clients' aspect. The results showed certain difficulties existed in the daily lives of clients and their families, and demonstrated the needed service. A comparison of similarity&discrepancy from clients'or nurses'perspectives was reported in this study. The result could be applied in clinical service and relevant further study.