The invention is a heavy-route strategy for protective restoring the multicast tree in T-MPLS network. The strategy provides a heavy-route protective restoring method in the T-MPLS network for the multicast tree. A rapid heavy-route of mono-cast service at malfunction downstream critical point is applied in T-MPLS multicast. Corresponding transmitting strategy is accomplished according to topological structure of point to multipoint and multipoint to multipoint of the multicast, which accomplishes rapid heavy-route of multicast service of the T-MPLS network and rapid protective restoring of service after malfunction. The multicast service after the malfunction of the network is capable of rapidly searching effective nodes and establishing protective path by the invention, which saves the network resources in the network for backup, reduces interrupting time of service stream greatly, improves service stream restoring speed and accomplishes rapid protective restoring of the multicast service.