The aim of this study is to propose service-oriented connection model among National Geospatial Information Platforms(NGIPs). For this, the study analyzes the necessity of NGIPs connection and extracts the issues related to the connection among NGIPs through Industrial-University-Institute experts survey. Based on this analysis, this study constructs service-oriented connection model for NGIPs, so called Single Point Access model and proposes the policy and technological counterplan to realize this model. This study result can be applied to establish a platform government based on geospatial information, policy for NGIP, and the national Information plan.