This project is research-driven and focuses on the construction of spatio-temporal knowledge infrastructure. For more than two decades, taking advantage of Academia Sinica's advantages in geographic information-related digital archiving, this undertaking has grown to a large-scale spatio-temporal information database , this project builds ad hoc search systems based on the metadata extracted from the materials in order to integrate GIS resources that used to be dispersed in different agencies. The goals of this year's project are "Geographic Information Value-Added Processing and Integration Application" and "Application of Artificial Intelligence in Map Database (Map AI)". A selection of 15,000 maps and remote sensing images will be valued-added such as coordination georeferencing for further applications. We will publish more than 500 online map services or index map vector layers to facilitate GIS-related applications. Based on the digital archives of geographic information data and artificial GIS value-added processing records, this project will continue to develop Map AI technology including "automatic map georeferencing", "automatic creation of index map vector layers" and "Chinese place names extraction from historical maps".