FTP protocol is widely used as a file transfer protocol.There are many FTP connections in the network,so it’s necessary for the gateway of IPv4-IPv6 conversion to support large capacity FTP connection.And the number of the FTP entries in the FTP forms is also very large,so it’s very important to design a large-capacity FTP form which can implement quick search and location.On the basis of these considerations,the design can realize quick search by using the Hash algorithms.