To provide a solid honeycomb panel structure building construction for construction capable of simply, accurately and quickly attaching external facing with rigidity without an excessive substrate steel frame and the like or a number of attaching troubles while contriving lightweight by rationally combining a honeycomb panel.

The ends of each metal honeycomb panel 1, 2 are joined in a state where a plurality of the flat plate-like metal honeycomb panels used for the external facing and interior finishing of a building have mutually angles, the loose ends of the honeycomb panels 1, 2 are attached to the fixing part C of the building to constitute a solid panel body A, Face external force receiving one adjacent metal honeycomb panel 1 through the joining part is characterized by being received by the face inner force of the other metal honeycomb panel 2 having the angle.