The invention discloses a manufacture method of a high-intensity and lightweight paper honeycomb composite board for vehicles. The preparation method comprises the following steps: a. impregnating glass fiber textiles with a compound adhesive; b. spreading two glass fiber textiles on each of the upper surface and the lower surface of an aramid paper honeycomb core to obtain a prefabricated honeycomb sandwiched board; and c. under the vacuum degree of 0.1MPa-0.2MPa, treating the prefabricated aramid honeycomb sandwiched board by adopting a vacuum bag pressing method, and heating and curing at a temperature of 55-75 DEG C to form a whole body so as to obtain the honeycomb sandwiched board for vehicles. The manufacture method has the advantages of simple production process, low material cost, simple molding equipment, small equipment investment, one-step molding method, continuous production and has high efficiency; materials are environmentally friendly and have no odor; the composite board has properties of light weight, good anti-vibration, heat-insulation and sound-isolation properties and the like; and when the composite board is applied to the vehicle field, a vehicle can have the properties of relatively light weight and better anti-impact property, and the safety and the comfort can be guaranteed better.