Rotational moulding vehicle chassis

The invention belongs to the technical field of new energy vehicle, and particularly relates to a rotational moulding vehicle chassis which comprises a chassis body. The chassis body comprises surface layers and a center foaming layer, wherein the surface layers comprise an inner surface layer and an outer surface layer; a cavity is formed between the outer surface layer and the inner surface layer; the center foaming layer is positioned in the cavity between the outer surface layer and the inner surface layer; reinforcing rib structures and kiss-type structures, which are used for strengthening rigidity and strength, are arranged on the chassis body; a positioning structure is arranged on the chassis body; mounting hole sites fixed with a vehicle body are arranged on the positioning structure. Through the adoption of the rotational moulding formation technology, the vehicle chassis is formed in one time; the production process is reduced; the production cost is lowered; the weight of the vehicle is reduced; the energy consumption is lowered; the impact strength of the vehicle is enhanced; the sound insulation effect of the vehicle is enhanced.