Plastic meal box with good thermal insulation performance

The utility model relates to the technical field of plastic meal boxes, and discloses a plastic meal box with good heat preservation performance, a heat preservation layer is arranged on the inner side of the plastic box body, a second partition plate is arranged in the plastic box body, and a first partition plate is installed outside the second partition plate in a sliding mode. Sliding rails are arranged on the front surface and the rear surface of the plastic box cover, and limiting rods are arranged on the upper surfaces of the sliding rails in a penetrating mode. A protection mechanism is arranged at the bottom end of the outer portion of the plastic box body and comprises a first protection plate arranged on the lower surface of the plastic box body, and second protection plates are symmetrically arranged on the two sides of the first protection plate. Through the arrangement of the protection mechanism, the bottom of the plastic box body can be effectively protected, the situation that the bottom of t