Vacuum cup

The utility model relates to a vacuum cup. The cup comprises a cup body, a cup cover, an inner container and a cup base, wherein the cup body comprises an outer-layer shell and an inner-layer shell; the two top ends of the outer-layer shell and the inner-layer shell are welded together; the two bottom ends of the outer-layer shell and the inner-layer shell are welded together; wherein the middle parts of the outer-layer shell and the inner-layer shell are separated to form a vacuum layer, the cup base is inserted from the bottom port of the cup body and connected with the cup body, the liner is arranged in the cup body, the top port of the liner is fixed with the cup body, the electric heating disc is arranged below the liner, and the cup cover is arranged at the top port of the cup body and seals the liner. The vacuum structure is arranged on the cup body, the appearance of the cup body is not affected by the inner container any more, the cup body can be arranged in any shape, the inner container can be arra