The invention relates to a heating lamp and belongs to the technical field of bathroom heating. The heating lamp comprises a lamp body, wherein the lamp body comprises a lamp base and a lamp housing matched with the lamp base, the side edge of the lamp base is bent leftwards to form a circle, the lamp housing comprises a side edge matched with the lamp base and a top facing connected with the side edge, the side-looking projection of the top facing is approximately rectangular, and a disc-shaped closed space is defined by the lamp base and the lamp housing. By the adoption of the scheme, sealing is easier, waste generation is reduced greatly, and the service life of the top facing is prolonged greatly.