A device for detecting infrared radiation attribute of fabric consists of a frame with two sliding bars at two sides and a base at bottom, artificial skin model set on base, infrared radiating source set at top of frame and enabled to slide along two said bars, sample table for setting sample, top and bottom transducer rods with their ends set separately with infrared radiation transducer. It is features as utilizing transducer to measure reflected infrared ray intensity and transmitted infrared ray intensity on two surfaces of fabric sample, calculating physical amount characterizing infrared radiation attribute of fabric sample according to measured value.