The invention discloses a frozen food packaging box. The frozen food packaging box comprises a casing, a connecting block is fixedly connected with the front side of the left side of the casing, and abox cover is hinged to the front side of the connecting block through a pin shaft. Through the coordination use of the casing, the connecting block, the box cover, a plug block, a transmission box, arotating rod I, a gear I, a rotating block, a handle, a rotating rod II, a gear II, a rotating rod III, a gear III, stopping blocks, spiral pieces, horizontal plates, sliders, openings and vertical plates, the problem that the storage space cannot be adjusted according to the size of the frozen food when the food is packaged by an existing frozen food packaging box is solved, the frozen food packaging box has the advantage that the storage space of the packaging box can be adjusted, the situation that food damage due to the fact that the food jumps under a bumping situation after less frozenfood is packaged in the fixed storage space is avoided, and therefore the practicality of the frozen food packaging box is improved.