The invention discloses a film piece of a rapid cooling type barbecue oven, belonging to the field of barbecue tools. The film piece comprises a cylindrical body, wherein an annular-belt-shaped archedbump protruding from the center of the body to the outside is arranged in the middle of the body, a plurality of cooling through holes are formed in the surface of the arched bump, and covers are hinged to external openings of the cooling holes and can rotate in a vertical plane relative to the cooling holes so as to open and close the cooling holes; and the upper end of the body is in smooth through connection with the arched bump, and a plurality of exhausting holes penetrating through the body are uniformly formed in the arc surface of a through connection part along the circumference of the center of the body. According to the film piece, cold air can enter the arched bump through the cooling holes after barbecuing is finished, so that the contact area between the body and cold air isincreased, heat of a matrix is reduced, and a rapid cooling effect is achieved. The film piece is simple in structure and compact in connection and thus is worthy of popularization.