Take-out food case for keeping food fresh

A take-out food case for keeping food fresh, comprising a case body and a case cover, wherein the case body comprises a heat insulation portion and a cold insulation portion, the heat insulation portion of the case body and the case cover are respectively provided with a wire hole and the wire holes are in communication with each other, four first seal grooves are arranged at four corners inside the heat insulation portion, and the first seal grooves are respectively inserted with a sealing strip, a plurality of circular cavities are evenly provided along a centre line of each sealing strip, a carbon fiber heating pipe is arranged between corresponding circular cavities of two adjacent sealing strips, wherein each sealing strip is arranged at one side with a sealing ridge which matches with respective first seal groove and at another side with two second seal grooves which form an angle of 90 degrees therebetween, a perforated baffle is arranged between opposite second seal grooves of two adjacent sealing strips, and the perforated baffle is arranged at a central part with a first protrusion for holding a layered perforated baffle, the layered perforated baffle is arranged with a fixing groove which matches with a take-out box, and the take-out box is disposed in the fixing groove, wherein in the case cover an ultraviolet sterilizing lamp is arranged, and on an outer surface of the case cover a control system is arranged, wherein the control system comprises an internal power supply, a temperature controller, a timer and a displayer, a thermocouple probe is further arranged inside the heat insulation portion, and the control system is connected with the thermocouple probe, the ultraviolet sterilizing lamp and the carbon fiber heating pipe by a wire which passes through the wire holes.