This study aimed to examine the validity and reliability of an instrument designed to assess the needs of institutionalized elderly. The instrument comprised 25 items covering 4 domains: basic activities of daily living, instrumental activities of daily living, environment and lifestyle, and emotion. These items were extracted from interviews with care providers of institutionalized elderly individuals. Confirmatory factor analysis showed that the model was validated ( n =120, χ 2 /df = 1.090, RMSEA = 0.03) and all standardized path coefficients ranged from .28 to .87. Internal consistency was high for each domain (Cronbach's alpha, .79 to .85). The reproducibility test ( n = 18) showed that 14 of 25 items showed weighted kappa coefficients ≥ .60 (i.e., substantial agreement). Therefore, we conclude that the present instrument was satisfactorily valid and reliable.