Non-uniformity correction is important to the application of infrared cameras. In order to promote the development of this technology,a new design of small black-body reference with small bulk,high precision,broad temperature range and convenient installation characters is introduced. The design chooses small and efficient thermoelectric cooler as black-body reference and takes the arithmetic of fuzzy-PID. Through serious testing and analysis,objective evaluations are given to stability,emissivity and uniformity of black-body,which proved that this new design is quiet practical.