We developed the China Regional Gravity Information System (RGIS) using mixed language programming in Visual Basic, Visual C++, and FORTRAN. The software is based on the MapInfo platform with OLE technology. With this system, we achieve visual data management for the database with spatial geography, geology data and gravity data as well as graphical data editing and data table operations over the whole of China. We are Zable to perform normalized gravity reduction, gravity and magnetic field transforms, gravity anomaly inversion and interpretation, thematic mapping and so on.