<p>This analytical paper investigates multi-field stress, strain and deformation analyses of a graphene origami nanocomposite-reinforced plate subjected to mechanical and thermal loads using an improved higher-order and stretchable kinematic modeling. The plate structure is assumed composed of a copper matrix that is reinforced with graphene origami as a three-dimensional reinforcement. The graphene origami is prepared using hydrogenation of the graphene sheets that leads to foldability. The overall plate’s characteristics are experimentally obtained using the micromechanical models. The virtual work principle is employed to derive governing equations. The analytical solution is developed to trace impact of thermal loads, origami content and foldability on the bending results. The main novelties of this paper are investigating the folding parameter and reinforcement content on the various deflection parameters and stress distribution.</p>