A honeycomb composite pedal plate for a building scaffold is formed by compounding a honeycomb core layer, adhesive films and surface layer sheets. The surface layer sheets are adhered to the upper surface and the lower surface of the honeycomb core layer respectively through the adhesive films. The two end edges of the pedal plate are bent downwards to be at right angles. An aluminum honeycomb plate or a plastic honeycomb plate is adopted in the core layer, and the advantages of being light and high in strength are achieved. Modified surface layers in the surface layer sheets have the functions of enhancing toughness, resisting wear and preventing skid by being modified, fibers are adopted by a fiber reinforcement layer for reinforcement, and a composite layer is a structural layer especially beneficial to improving the adhesive performance of the surface layer sheets and the honeycomb core layer. The honeycomb composite pedal plate has the advantages of being simple in structure, light, durable and convenient to construct, recyclable materials are adopted, environmental protection is achieved, the materials can be used repeatedly, and the environment-friendly building construction technical requirement is met.