Off-road vehicle composite trailing arm and manufacturing method thereof

The invention belongs to the technical field of an automobile and particularly relates to an off-road vehicle composite trailing arm and a manufacturing method thereof. The trailing arm includes a support frame layer, an adhesive film layer and a carbon fiber material layer are laid on the outer side of the supporting frame layer, and a supporting frame is composed of a balsa wood material, an aluminum material and super glue. The trailing arm is advantaged in that the mass of the trailing arm is effectively reduced while good mechanical properties are guaranteed, and the trailing arm has goodimpact resistance, is not prone to breakage and breakage, still has a high safety coefficient under severe driving conditions and guarantees safety of a driver, a new structural connection form for the structure is provided, the aluminum material is partially pre-buried in the carbon fiber material layer, a part of the aluminum material is externally processed into the mounting hole, so a weldingerror of a traditional tr