An infrared temperature probe and a body temperature detector. The infrared temperature probe comprises: an infrared probe body (11), metal sleeves, a printed circuit board (14) and a plastic support frame (13). The two ends of the infrared probe body (11) are a detection end and a pin end. The plastic support frame (13) is provided at the detection end of the infrared probe body (11) and is provided with a detection hole, the detection end facing the detection hole. The printed circuit board (14) is provided at the pin end, and pins (111) at the pin end are connected to the circuit on the printed circuit board (14). The metal sleeves surround the side surface of the infrared probe body (11). The outer sidewall of the metal sleeves on the outermost side of the infrared temperature probe is provided with screw holes (171). The plastic support frame (13) and the printed circuit board (14) are both fixed to the metal sleeves by means of screws (15, 16). The infrared probe body (11) is covered by the metal sleeves, which, as far as possible, isolate the inside of a device from being radiated by external heat, and form a stable thermal capacity, so that the surrounding infrared probe body is in a thermal equilibrium state, weakening the impact of thermal shock from the external environment on the infrared probe body (11) during the detection, further improving detection accuracy.Linvention concerne une sonde de température infrarouge et un détecteur de température corporelle. La sonde de température infrarouge comprend : un corps de sonde infrarouge (11), des manchons métalliques, une carte de circuit imprimé (14) et une structure de support en plastique (13). Les deux extrémités du corps de sonde infrarouge (11) sont une extrémité de détection et une extrémité de broche. La structure de support en plastique (13) est disposé au niveau de lextrémité de détection du corps de sonde infrarouge (11) et est pourvu dun trou de détection, lextrémité de détection faisant face au