The present invention relates to network communication field, and specifically discloses a recovery path establishment method, comprising: a first node according to the routing information of the the business recovery path and the working path, obtaining a working forward shared node collection of the recovery path; the irst node according to the working forward shared node collection, determining if itself is a working forward shared node, and assigning a first tag and a first interface; the first node sending an establishment request message to a first downstream node, and the establishment request message including at least a first tag, a first interface, the routing information of the recovery path and working forward shared node information; the first node receiving an establiment response message pf the recovery path, the establiment response message including at least a fourth tag, afourth interface, and the routing information of the recovery path; and the first node according to the first tag, the first interface, the fourth tag, and the fourth interface, establishing the recovery path cross-connect. The embodiment of the invention also discloses a recovery path establishing system and a node device.