This paper has been managed to review the meaning of Inter-Governmental Relations (IGR) and Regional Governance (RG) of Local Government. Meanwhile, it also discussed the constrains of IGR and RG in Britain and United States of America. Furthermore, the disputing and predicaments of IGR and RG in Taiwan are both the main parts of analysis in this paper. In addition, this study dedicated to develop the constructive approaches on IGR and RG in Taiwan through Lindblom's disjointed-incremental theory and step-by-step methodology. Finally this paper suggests the government of Taiwan that better take a pilot or steering project to deal with the disjointed-incremental approach and the strategies of institutional change and managerial regime-building.