The invention discloses a light-weight high-intensity honeycomb structure bed panel and a preparation method thereof. The light-weight high-intensity honeycomb structure bed panel comprises a panel body, wherein the panel body is a honeycomb latticed hollow panel; a force bearing structure is molded integrally at the rear surface of a panel body; and a hexagonal radiation force bearing structure is adopted for the force bearing structure. According to the invention, ABS acts as a base material; EVA and SBS are added for toughening; fiber type materials are added for reinforcement, and a double-screw-rod extruder is used for co-blending and modification, and finally an ABS modified composite material is obtained; and then a plastic injection molding technology is used for molding integrally so as to obtain the light-weight high-intensity honeycomb structure bed panel. Compared with a timber and bamboo bed panel on the market, the problems of heavy weight, easiness in being affected by dampness, mildew, corrosion, damage by worms and the like of the timber and bamboo bed panel can be solved, and the materials are environmentally friendly and safe, and can be recycled after being damaged; compared with chemical fibers and woven cloth which are used on the market, the light-weight high-intensity honeycomb structure bed panel belongs to a hard bed panel, is comfortable to lie, and is suitable for long-time use; and compared with aluminum alloy and other bed panels, the light-weight high-intensity honeycomb structure bed panel has the advantages of low cost and good heat comfort.