Portable packaging box not prone to deformation

The utility model discloses a portable packing box not easy to deform, which belongs to the field of zongzi packing boxes, and comprises a box body and a box cover, the box body is provided with a triangular prism accommodating cavity for placing zongzi, and is also provided with two triangular supporting plates positioned on two sides of the box body and used for sealing and supporting; the box body is upwards provided with a flat plate, and the flat plate is provided with a handle hole; the second side wall is provided with a through hole and a sealing plate corresponding to the through hole, and a plurality of baffles are further arranged at the position, close to the through hole, of the second side wall. The box cover is provided with a plurality of first magnetic blocks, the second side wall is provided with first iron blocks corresponding to the first magnetic blocks, and the first magnetic blocks and the first iron blocks are connected and fixed through magnetic attraction. A second magnetic block is