Abstract: This paper studied the thermal property of two kinds of light-heat conversion thermal storage materials CR-1 and CR-2,and through comparison,CR2 was selected and applied to textiles by means of coating technique to develop a new textile with thermal storage function.The influence of the percentage of CR2 in coating agent,coating weight on fabric,radiated area etc.on the thermal property of the fabric was investigated and the coating process was optimized.The thermal storage power of the coated fabric under the sunlight and its physical and mechanical properties were tested.It was found that CR-2 was an ideal thermal storage material and the adopted finishing process had little effect on the strength of the fabric.