The invention discloses an energy-saving indoor warner which comprises a carrier plate. A first storage groove is formed in the side wall of the carrier plate, an electric heating tube is fixedly connected in the first storage groove, a first installing groove and a second installing groove which are located in the first storage groove are formed in one side of the electric heating tube, two symmetrically door sashes are rotatably connected in the first installing groove, each door sash comprises a first installing rod rotatably connected in the first installing groove, a second installing rod rotatably connected in the second installing groove and a foldable door installed between the first installing rod and the second installing rod, a movable plate rotatably connected to the opening position of the first storage groove is arranged on the side, away from the electric heating tube, of the foldable door, and a first installing groove is formed in the side wall, close to each door sash, of the movable plate. The working efficiency of the warmer is improved, the warmer saves energy, is environment-friendly, meets the usage demand of people and avoids dust erosion, and the service life of the warmer is prolonged.