Ring label switched path creation method and related apparatus and communication system

Example discloses a ring label switched path creation method and apparatus and communication system of the present invention. Wherein the ring network label switched path creation method, comprising: a first node receiving a Path message for creating a first LSP from the second node; assigning a first label to the first label switched path; to transmitting a first node carrying a first label Resv message; if the first node receiving the second message to create the second path LSP from a second node, and a second label switched path is determined and a same destination node label switched path, and the first node, a second node and a destination node in the same ring network, the first node of the second LSP label assigned a first transmission to the second node carrying a first label second Resv message. Embodiment of the present invention to create programs help reduce the amount of ring LSP and maintenance complexity.