Abstract: This research builds upon the traditional composition of the infrared flare(Magnesium/Teflon, MT), and red phosphorus and copper oxide were chose as functional additives, a composition of thin-film infrared flare with low flame temperature was optimized based on its burning time, flame temperature and radiation intensity. In addition to respective conductivity of the material component were chosen as parameters, combustion rates of different prescriptions were analyzed based on their conductivity, and an indication of the impact of combustion temperature and radiation intensity was fiven. The results of the study show that red phosphorus and copper oxide added can improve combustion stability under lower flame temperature. When the content of red phosphorus was 25%, magnesium powder was 25%, copper oxide was 10%-15%, teflon was 35%-40%, the combustion of the 0.03 cm-thick thin film was most stable, and its combustion time is greater than about 3 s, the most radiation intensity is 1.5 W/sr, the flame temperature is about 800 ℃.