The invention discloses an explosion-proofing infrared UV flame detector including an explosion-proofing outer casing, one side of the explosion-proofing outer casing is provided with a shield plate, the inside of the explosion-proofing outer casing is provided with an explosion-proofing inner casing, a first vacuum layer is formed between the explosion-proofing outer casing and the explosion-proofing inner casing, one side, closing to the shield plate, of the explosion-proofing outer casing is provided with a piece of explosion-proofing outer glass, and one side, closing to the explosion-proofing outer glass, of the explosion-proofing inner casing is provided with a piece of explosion-proofing inner glass. The first vacuum layer is formed between the explosion-proofing outer casing and the explosion-proofing inner casing, a second vacuum layer is formed between the explosion-proofing outer glass and the explosion-proofing inner glass, the vacuum layers reduce the effect of heat transfer to make the temperature conduction of the inside and the outside of the sensor slow, thereby preventing internal electronic components from being melted, and reducing the internal blasting probability, and moreover, the detector main body is provided with an infrared flame detector, a UV flame detector, and a high-definition pick-up head, so that the scene of fire can be maximally detected.