The Society of informatization already comes in front of us, and its influence range over the entire fields of politics, economy and culture. Since local council has been constituted in 1991, the era of local autonomy has come. One of major issues dealt in these days of local self-government and informatization is the regional informatization policy. The objectives of this study are to identify the critical success factors to be necessary for the regional informatization policy implementation in Japan, and to provide the Korean local government with some useful information. For these purposes, the major issues dealt in the regional informatization policy activities in Japan and Korea are reviewed. And for the survey research, the important factors are clustered into four groups : the organization of policy implementation, the information provider, the imformation user, and the comprehensive information infrastructure. The AHP(Analytic Hierarchy Process) has been applied to numerous highlevel decision analysis problems in recent years. AHP allows decision makers to set priorities and make choices on the basis of their objectives and knowledges and experinces in a way that is consistent with their intuitive thought process. The AHP uses pairwise comparisions. The results achieved with the AHP approach are analyzed. In the light of the significant factors discriminated in this research, some useful implication and the direction for the success of the regional informatization policy implementation are discussed. And the further research direction is presented.