In this study, the thermal effects on LED color performance, such as CCT and chromaticity coordinate, were studied. As the temperature rises , the spectrum of bare chip will red shift that will let the efficiency increase or decrease. This phenomenon will be helpful to compensate the decay of the yellow light which results from thermal quenching, and it will achieve the stability of color performance. The purpose of this study is to achieve the minimum deviation of CCT and color coordinate by combining the bare chip with specific peak wavelength and phosphor YAG. In the end, based on the result of packing, we analyzed and verified our hypothesis.