The utility model discloses a rice paddy field warming device, including the bottom pedestal, the bottom pedestal becomes the regular polygon structure, fixed establishment is installed to the bottomof bottom pedestal, the side frame is installed through the bolt in bottom pedestal upper end, and is arbitrary side frame internally mounted has glass door, all the other side frame internally mounted has side glass, the top support body is installed through the bolt in side frame upper end, the top support body becomes the regular polygon prism, top support body middle part is provided with theventilation hole, frame body surface embedding in top has top surface glass, the ventilation regulation frame is installed to top support body upper end, the ventilation regulation chord position in the outside in ventilation hole. Beneficial effect lies in: be convenient for realize the fixed of device through fixed establishment, fixed effectual, the device bulk strength is high, long service life, and heating effect is good.