Heat preservation food packaging box

The utility model discloses a heat preservation food packaging box which comprises a heat preservation box body and a fixing unit. A heat preservation box cover is movably inserted into the upper end of the heat preservation box body, tower buckles are symmetrically arranged on the front side face and the rear side face of the heat preservation box body and movably clamped with hooks vertically corresponding to the surface of the heat preservation box cover, corner protectors are arranged at the four corners of the lower end of the heat preservation box body, positioning grooves are formed in the four corners of the upper surface of the heat preservation box cover, and handles are arranged at the left end and the right end of the heat preservation box body. A label box is arranged on the front side face of the heat preservation box body. The fixing units are symmetrically arranged on the rear side wall of the heat preservation box body, the heat preservation box body is a macromolecule polyethylene heat prese