Composite external wall panel for hiding steel frame beam column

The utility model discloses a composite external wall panel used for hiding a steel frame beam column, the steel frame beam column comprises a steel beam and a steel column, the steel beam is I-shaped, the upper end of the steel beam supports a floor, the steel column is connected with the steel beam, the composite external wall panel comprises a belly part and splicing sections located at the upper end and the lower end of the belly part, and the section thickness of the belly part is larger than that of the splicing sections. The upper end face of the belly portion abuts against the bottom face of the steel beam, the lower end face of the belly portion abuts against the top face of the lower floor slab, every two vertically-adjacent composite external wall panels are connected through a splicing section, the inner end face of the belly portion is flush with the end faces of the steel beam and the steel column, and the splicing section at the upper end of each composite external wall panel is connected with