The disclosure discloses a path switch-back method and apparatus in a transport network, belongs to the field of communications, and is used for avoiding the problem that signals can not be switched back to a working path from a protection path when the links in two directions of the working path between nodes in the transport network are restored from fault simultaneously. The path switch-back method in a transport network provided by the disclosure includes: a local node determines two failed links on the working path between an opposite node and itself are restored to normal simultaneously (S101); the local node enters a Wait To Restore (WTR) state (S102); and the local node switches signals back to the working path when the WTR state ends (S103). The disclosure is used for realizing that signals are switched back to the working path from the protection path when the links in two directions of the working path between nodes in the transport network are restored from fault simultaneously.