Provided is a surface-mount infrared temperature sensor that can be miniaturized and that can effectively specify a measurement section of a detection target. A surface-mount infrared temperature sensor 1 that is provided with: a thermally conductive main body 2 that is provided with a light-guiding part 21 that has an opening 21a on one surface side and that is formed so as to guide infrared light and with a shielding part 22 that has a shielding wall 22a on the one surface side and that is formed so as to shield infrared light; a substrate 3 that is provided on the other surface side of the main body 2; an infrared-light-detection heat-sensitive element 4 that is arranged upon the substrate 3 in a position that corresponds to the light-guiding part 21; a temperature-compensation heat-sensitive element 5 that is arranged upon the substrate 3 so as to be separated from the infrared-light-detection heat-sensitive element 4 and that is arranged in a position that corresponds to the shielding part 22; a wiring pattern 31 that is formed upon the substrate 3 and that is connected to the infrared-light-detection heat-sensitive element 4 and the temperature-compensation heat-sensitive element 5; and a mounting terminal 32 that is connected to the wiring pattern 31 and that is formed on an end-part side of the substrate 3.