Pizza box with universal size

The utility model discloses a universal size pizza box, a folding structure is also arranged in a box body, the folding structure comprises a pair of baffle plates which are arranged at two corners in the box body in a splayed shape and can be upwards folded and erected, a support hole is arranged in each baffle plate, and a support plate which can be upwards folded and erected and forms cross support with the baffle plates is arranged in the hole. When a small-size pizza needs to be packaged, the baffle is erected and fixed, and when a large-size pizza needs to be packaged, the baffle is put down, so that the universality of the pizza box is improved, and the SKU of the pizza box is minimized. By arranging the supporting plate, the erected baffle can be supported and fixed, and clamping connection of the supporting plate and the baffle is more stable through cooperation of the clamping opening and the protrusion. The whole folding structure and the pizza box are integrally designed, and folding forming is ac