For promoting the surveying and mapping technique, Dr. Lu Erh-Sang, the chairman of the Chinese Society of Cadastral Survey, was invited to make speech at the National Land Surveying and Mapping Center (NLSC) on January 12, 2012. The topic “Make Digital Taiwan Mapping for I-Survey”relates to the mutual exchange of experience, technique, information and others. The speech helps the staves of NLSC to improve on the new surveying concepts.