Prefabricated external wall panel and connecting node thereof

The utility model provides a prefabricated external wall panel and a connecting node thereof, which comprise the connecting node of the prefabricated external wall panel and a prefabricated beam, theconnecting node of two adjacent prefabricated external wall panels and the connecting node of the prefabricated external wall panel and a prefabricated column, are connected through an embedded part and are provided with a multi-layer waterproof system, so that the utilization of indoor space is improved; the prefabricated external wall panel has the advantages that the waterproof quality is improved, the problem that the wall surface of the joint of the prefabricated external wall panel is prone to cracking in an area with large wind pressure is solved, the installation safety of the prefabricated external wall panel is guaranteed, heat insulation and decoration of the prefabricated external wall panel are integrated, modeling richness of a component can be achieved through a mold, and the prefabricated external