Land survey correction is the main duties of government of land affairs departments in Taiwan. Because of the rapidly of economy development and theraisely of land price, people require more accuracy surveying results. Due to distribution of control points, mistakes of reliable land boundary coordinates and analysis of overlap mapping , traditional procedures of land survey correction would make different results. It brings about lots of land disputation and decrease of government credibility. Therefore, NLSC(National Land Surveying and Mapping Center) provides e-GNSS technology that not only save time of surveying but avoid surveying mistakes, to upgrade the quality of surveying results. Existing graphic informations for survey works of topographic maps, orthophoto images maps, cadastral digital maps, base-status-point maps, city planning maps and electronic-global maps effectively supplied to cadastral survey of overlap mapping. Collecting with all graphic information, those data uniformly translated into the TWD97 coordinate system. It also assists works of land survey correction and the graphic information could be provided the good valuation reference. This study implement e-GNSS technology and multi-map data for graphical area of land survey correction, and selectcompleted resurvey area ofdigital cadastral map in the range as reference area. After established new SOP (Standard Operation Procedure), using high precision of e-GNSS technology and multi-map data to handle affairs of topographical densified control surveying, cadastral surveying and land survey correction. Because there is no accumulation residuals of traditional densified topographical control surveying, measured points can be translated into a TWD97 coordinate system by 6-parameter translations and least square collocation method. It is proved that not only reduce of the operating time but also improve of working efficiency, new SOP corresponds with the rules of operating procedures and the accuracies of related specifications.