VPLS network as a new layer 2 VPN technology has huge prospect in large-scale MAN. With the popularity of high-quality services in MAN such as next generation network (NGN) and network TV (IPTV), it demand the increasing reliability in the network. This paper will introduce the basic model of VPLS network and its characteristic. Then an implementation of protecting VPLS network important link or node with the FRR of MPLS traffic engineering are presented to improve the quality of service, reduce the packet dropout. And also the principle of FRR and the process of traffic switching will be introduced in detail. At last, the result of experimentation is provided.