Abstract: Grid computation is a branch of computer science researching, the main idea is how to integrate some different computation capabilities in different geographical positions,furtherrnore to unify them as a virtual super computer.We researched the architecture and performances of Grid Internet, especially, the characters of the new protocols and the sharing of resources were studied, the distributing computation and parallel computation, the co-operating performance and the intelligent performance were discussed too.

Key words: Urid computing, Urid network, Protocol of grid system