Honeycomb sandwiched plate used in vehicles and preparation method of same

The invention discloses a honeycomb sandwiched plate used in vehicles and a preparation method of same and belongs to the field of vehicles. The honeycomb sandwiched plate includes a bottom layer, a surface layer and a honeycomb core layer arranged therebetween, wherein each of the bottom layer and the surface layer is composed of at least two glass fiber fabric layers. The bottom layer, the surface layer and the honeycomb core layer are integrated through cured epoxy resin. The main structure of the honeycomb core layer is sealed to close the holes in the honeycomb sandwiched plate in the invention, so that the honeycomb sandwiched plate is effectively improved in rigidity, so that the honeycomb sandwiched plate used in vehicles can satisfy the requirement in a liquid moulding process.