The same as other forerunning states, the welfare system in Taiwan also underwent a decentralized development in recent years. This occurrence, as it appeared on the scene, mainly resulted from the attempt at downsizing Taiwan’s provincial government, and the emergence of the voice of local self-government in mid 1990s Yet, up to the present, students have paid little attention to this newly developed phenomenon. To find out the factor that brought the local welfare system into existence, and to build up an analytical model to explain its development, this study exams twenty-three counties and cities’ welfare practices between 1994 and 1997. By multiple regression analysis and canonical correlation analysis, the author comes to concludes that the development has been greatly affected by such factors as party competition, scale of local finance, degree of local autonomy, degree of industrialization, and, the size of local population.