Disclosed is an infrared sterilizer, comprising an infrared heater (1), a heat dissipation sleeve (2), a supporting pipe (3) and a base (4). The infrared heater (1) is disposed at one side of the heat dissipation sleeve (2), the infrared heater (1) is fixedly connected to the heat dissipation sleeve (2), the supporting pipe (3) is disposed below the heat dissipation sleeve (2), a protection plate (5) is disposed on the supporting pipe (3), the protection plate (5) is welded to the heat dissipation sleeve (2), the heat dissipation sleeve (2) is provided with through-holes (6), the supporting pipe(3) is fixedly connected to the base (4), a ceramic pipe (7) is disposed in the heat dissipation sleeve (2), a metal pipe (8) is disposed in the ceramic pipe (7), light reflection sheets (9) are disposed on the metal pipe (8), the light reflection sheets (9) are disposed at an inclined angle, the light reflection sheets (9) are equally distributed on the metal pipe (8), wiring holes (10) and a power switch (11) are disposed on the base (4), and a gap between the heat dissipation sleeve (2) and the ceramic pipe (7) is 3.8-5.7 mm. The through-holes (6) have a hole diameter of 0.7-3.4 mm, and the through-holes (6) are uniformly disposed on the heat dissipation sleeve (2). The inner wall of the metal pipe (8) is provided with a curved surface. The infrared sterilizer has a high sterilization efficiency, has a stable and reliable structure, is safe and reliable, and has a good heat dissipation effect.Linvention porte sur un stérilisateur à infrarouge, comprenant un dispositif de chauffage infrarouge (1), un manchon de dissipation de chaleur (2), un tuyau de support (3) et une base (4). Le dispositif de chauffage infrarouge (1) est composé dun manchon de dissipation de chaleur (2), du dispositif de chauffage infrarouge (1) fixé au manchon de dissipation de chaleur (2), du tuyau de support (3) placé sous le manchon de dissipation de chaleur (2), dune plaque de protection (5) placé s
