NLSC have completed e-GPS real-time kinematic positioning system which is widely used in the field of Land Surveying and Mapping since January 1 2009. The e-GPS real-time kinematic positioning system can provide application the strengths and effectiveness to other official business , and improve service performance of the policy. For promoting the system, NLSC invited people who work on the mapping business related construction, transportation, water resources, pipeline, and forest service personnel to the conference. NLSC hold "The e-GPS positioning system used in various types of mapping business conference" that planning for a total of 4 times 520 person-times, 1st and 2nd echelon conference completed respectively on June 21 and June 28, 3rd and 4th echelon conference is expected on July 5 , July 12.Through the conference,NLSC hope to expand e-GPS real-time kinematic positioning system to application in the various business fields.