The Constitution stands as the supreme legal basis of a nation, including people's rights and obligations, exercising of governmental systems, and the nation's future development. More importantly, human dignity and free, democratic constitutional order are encompassed in the Constitution. Therefore, exercising firmly in institutional systems, safeguarding human rights, planning comprehensive visions are depended on a relevant constitution. It will be the basis of a nation's sustainable development and represent firm belief guaranteeing democratic and free value. Faced with challenges of internal and external environments, free and democratic constitutional order is depended on stable legislation and viable systems for the nation and local authorities. The influence of local power is not neglected in particular, how to establish the concrete and realistic local systems through the constitutional reforms will be an important task. After all, local systems are complex and highly changeable, it is impossible that reframing local systems to deal with fickle situations. Accordingly, in order to set up a sustainable local system, local issues and problems must be found firstly, then the future vision should be structured and relevant institutions can be made. Based these anticipation, the study aims to probe the essential thoughts of local self-governments firstly, to search the foundation of local government in the constitution, to explore guaranteeing styles about local self-governments in the constitution. Secondly, the evolvement of constitutional development will be discussed by the way of a historical view, the change of Taiwan's local systems in history can be understood. By doing so, we can understand the transformation in Taiwan's local systems to handle the situations. Finally, the suggestions for local systems are proposed through an integrated speculation.