Abstract: The grid technology is a hotspot in HPC research. The architecture design is the basis for constructing the grid system. Based on the existing grid technologies, the design of Vega Grid is proposed and make research on some important issues are studied. The fundamental idea of Vega Grid is to build a virtual, single grid super computer. The kernel of Vega Grid is Vega philosophy. The key components of the Vega Grid include the grid hardware, grid interconnection system and grid operating system. Also proposed are the important conceptions such as resource router, grid computing protocol and grid browser tc.