40 participants of teacher and students of department of geomatics, NCKU visited National Land Surveying and Mapping Center (NLSC) , Ministry of the Interior ,on January 21th,2013.Briefings on ”Business in NLSC” , “The e-GPS System” , “UnmannedAircraftSystem” , “National Land Surveying and Mapping InformationWeb Map Service System”and “The Survey Instrument Calibration Laboratory （SICL）”were introduced.