In this paper, we present a peer-to-peer file sharing platform combined with data grid system for mobile devices. Facing the limit of network bandwidth and unstable signal strength in wireless network, wireless peer-to-peer architecture is now widely accepted as a new computing paradigm for wireless devices. In wireless P2P architecture, one can speedup parallel file transfer and enhance the communication stability by establishing multiple concurrent P2P connections. This paper mainly applies data grid system to deal with the problems of file location discovery and client certification. We propose an architecture that uses GridFTP protocol to establish a video sharing platform for mobile devices. Combined with data grid, the system can perform video analysis and classification upon on its computing resources, keeping the files in the newest state at all times.