Abstract: Analyzes the needs of BGP MPLS VPN modul.The model include three main Sub-units,that are the unit of LDP,Forwarding and Forwarding Table unit.Meanwhile,analysis forward operation principle and puts thoughts of design and impletation.Besides,puts VRF-table,FTN-table and IML-table into a Fowarding-table of which the Forwarding-ietm is decided by Operation-cord,so that it simplifies the management of Route-information,improve the look-up table efficiency.