The invention discloses a traffic switching method of multiprotocol label switching traffic engineering, comprising: after the fault of a main lable switching path is recovered, detecting and obtaining information of transmitting table items of all routers being send in the main lable switching path, switching the traffic on the main lable switching path, transmitting the traffic through the mainlable switching path. The invention also discloses a network node device. Utilizing the invention, when switching a backup lable switching path to the main lable switching path, the transmission for table items of main lable switching path all link nodes can be guaranteed effectively, packages and trffic can not be lost, thereby user experience, availability and stability of the network can be improved.