This paper is to study how and why chronic patients choose the long-term care patterns. One hundred and two subjects with chronic disease are recuited from a regional hospital in Taichung. Their uses of medical treatment, health status, and ADL were collected and analyzed by the software of SASIPC. The results of this study show: (1)most ofchronic patients (62.7%) choose the pattern of home care, whereas 37.3 % choose the pattern of institutional care instead. (2) There are no difference in choosing home care or instutional care in predisposing factors, enabling factors, and demand factors.