Nowadays, map online with Google Maps is quite common. The factor play very imp'ortant role to buit map online is GIS Database. The GIS database including spatial databases (it is called geographic database) and attributional database (called non geographic database). The system of Database management can be built in different ways, such as database management system builted by PHP/ MySQL, XML, Microsoft Access...etc. The database construction methods are now required to be contributed by server. With cloud technology, Google allows database administrators to build GIS database in the cloud technology. Google Fusion Table is one of that which has functionality to build database and edit online map. It is very effective. In this paper, the authors present how to build GIS databases and mapping online with Google Fusion Table application. It also open the new orientations to research in other areas.