Hidden prefabricated outer wall pendant and mounting method thereof

The invention relates to a hidden prefabricated outer wall pendant and a mounting method thereof. The hidden prefabricated outer wall pendant comprises a PC prefabricated outer wall body, a pendant hiding box, a mounting base, a limiting base and a steel structure frame beam. A plurality of threaded steel bars are welded on the outer side of the pendant hiding box; the threaded steel bars are poured into the PC prefabricated outer wall body. The pendant hiding box is embedded in the PC prefabricated outer wall body, and a movable load bolt is arranged in the pendant hiding box; the mounting base is welded at the bottom of the pendant hiding box; the limiting base is welded to the top of the steel structure frame beam, is inserted into the pendant hiding box and clamps the movable load bolt; a fixed load bolt is welded to the top of the steel structure frame beam and connected to the mounting base in a threaded mode. The pendant hiding box is embedded in the wall body, so that the pendant is completely hidden