In case of limited resources, FTP service resource sharing platform cannot afford the rapid growth of visits, data capacity and network traffic required for computing needs with single server. This paper adopts a minimum connection scheduling policy design, achieves improved minimum link load balancing scheduling algorithm and evaluates the performance of the transmission speed, loading users number and disk read speed and other aspects in the redundant resource sharing platform of scheduling server designed by increasing the backup scheduling servers. The results shows that the performance of the resource sharing platform designed in this paper has significantly improved, which has practical significance in promoting the technology of building efficient resource sharing platform under conditions of limited resources.