Paper-plastic cup cover

The invention relates to a paper-plastic cup cover, which comprises a cup cover body. The periphery of the cup cover body is connected with a circle of sealing clamping seat; a sealing clamping grooveis formed in the lower side of the sealing clamping seat; the sealing clamping groove is in interference fit with the upper cup edge of the cup body; the inner wall of at least one inner side of thesealing clamping groove is pressed on the inner side wall of the upper cup edge to seal the cup body; the outer edge, close to the outer side, of the sealing clamping seat extends to the lower side ofthe upper cup edge; a buckling seat for buckling the lower end of the outer side of the upper cup edge is arranged on the outer edge of the sealing clamping seat and positioned on the lower side of the upper cup edge; the cup cover body and the sealing clamping seat are integrally made of paper plastic, the paper-plastic cup cover is clamped, fixed and sealed by clamping the upper cup edge through the sealing clamping groo