Method for processing label distribution message and label exchange router

The invention relates to a processing method used for distributing messages by labels and a label exchanging router; wherein, the method comprises the steps as follows: when a message used for informing that the address provided in an address message used for adding addresses is established, whether the address is the next hop address corresponding to the forwarding equivalence class or not is judged; the label mapping message corresponding to the forwarding equivalence class is received in advance; when the address is the next hop address, whether the forwarding equivalence class is added into an FTN list or not is judged; when the forwarding equivalence class is not added into the FTN list, the forwarding equivalence class is added into the FTN list; corresponding FEC is added into the FTN list when the LSR receives the address message before receiving the label mapping announcement message, thus solving the problem that the LSP can not be established when the LSR receives the address message after receivin