It is likely that, since the first and second phase of decentralization in 1991 and 1995, the Korean local government system benefits from the German-French principle of local "self-administration" (Selfbstverwaltung). But local governments in Korea are regulated by a framework law, the Local Autonomy Act, not by Constitution through which the status of local and provincial(regional) governments in mostly Western developed countries is guaranteed. All the more, Korean local government responsibilities are in fact almost defined in a more detail by Government`s statutory instruments(or by delegated legislation which provides discretionary powers in the hands of President of the Republic of Korea or central departmental ministers), rather than by legislation made by National Assembly. As for the reforming efforts for Korean local government system during a decade, three main elements of renewing the institutional framework were since 2005 introduced in the local political arena: from 2005, the Local Referendum Act confirmed the power of councils to hold referendums, in order to settle down community conflicts and consult local people on such issues as major local developments or matters of particular local controversy; Local Ombudsman Regime and Local Petition against the abuse of local finance in 2006; and the Local Recall system to the elected mayors and councilors alike is effective since July of 2007, through which elected local public officials can be removed from office by the procedure of local vote(3 cases tried, but insufficient participation rate). And, since a few years ago, a small but important group of the national deputies from both the governmental and opposition parties continue to promote the reformist rhetoric for the amalgamation of the 246 upper-level and lower-level local governments into 60~70 metropolitan city governments, mainly arguing the fact that the Korea`s provincial boundaries continue to be unchanged since the late-nineteenth-century and that the rapid economic growth and fast transportation together with subsequent urbanization naturally require boundary reform. So, these days, merger and amalgamation have been the primary means used for advancing the decentralization in Korea and altering administrative jurisdiction for continually expanding metropolitan cities. The fusion plans proposed by local government were then numbered in 18 covering 64 areas throughout the country, resulting in just one case of success in consolidation out of them in the area of East Southern part of the country into Chang Won city. But the decentralization trend in advanced countries seems go differently where facing the increasing globalization and open economic competition. Many of the Member States of the European Union in recent years have experienced dramatic changes in the organization of their intermediate level governments, while new ways and channels have been established to enhance the interaction between the intermediate level of local government and central government. Especially, European countries have undergone an overall movement of regionalization, in the sense of the reinforcement of intermediate levels and, above all, an increasing interdependence between different levels, though we witnessed that recent developments in various countries remained remarkably differentiated. This study, considering these different situations, proposes to forecast what it will be the desirable reformation of the local government in Korea for forthcoming 2020 by suggesting the main reform policies to be adopted dividing the research themes into 3 areas, ``Local Autonomy``, ``Local Government`s Capacity`` and ``Civic Participation``. The methodological instruments on which this study is based are the mega-trend analysis, AHP technique, Focus Group Interview and various contents analysis tools, in order to harness and develop the possibly exact scenarios fitting for remodeling the Korean local government structures and systems toward 2020. As for the contents of the research, the first part of each division analyzed the some inherent problems as follows: with nearly over 20 years of decentralization experience, we can detect some numerous, but common to Korean and the other developing countries, issues; that is, the unclear distribution of functions between the levels of central and local government and, in consequence, the lack of clear responsibilities among governments, the ineffective system of supervision of local and regional governments by central government; the lack of capacity at the provincial level to fully implement the new decentralization framework, and lack of programs of the central government to support capacity building in the provinces and local communities, etc. And, in the second part of the study described by the futuristic scenario techniques to tackle the problems mentioned above, this paper suggests an array of concrete solutions, based upon some ideas gleaning from decentralized advanced countries experiences, as follows: first, it is necessary to express in related acts clearly what duties properly belong to which government between central and local government; secondly, to transfer the delegated functions in bulk to local government in expanding the local government`s responsibilities in discharge of local service delivery; thirdly, in the long-run, the habitual practice of delegating the mandatory duties to local government through regulations by central government must be stopped and, of these functions, many are to be devolved to the discretion of local government with properly financial assistance, and etc. In conclusion, for furthering political devolution and decentralization, the Korean central government must without delay be prompted to ease the various and detailed State control over sub-national governments in order to fully benefit the spirit of the "grass roots" of local democracy. Finally, the study put an emphasis on the fact that Decentralization takes always time and requires implementation in evolutionary and incremental phases, so the process need not to be a uniform one across the country.