Abstract: Cu-doped sodium zincophosphate powders,to be used as heat-reflective material,were prepared by the co-precipitation method. The products were characterized by XRD,SEM and UV-VIS-NIR spectrophotometer. The effects of the pH,Cu doping amount and heat-treating temperatures on crystal structures,surface morphology and reflectance spectra were discussed.The results indicated that when p H value increased from 6 to 10,the near-infrared reflectance of NaZn_0.5(Cu)_0.5PO₄ increased and then decreased; when the p H was adjusted to 9,the near-infrared reflectance was the highest; the near-infrared reflectance of Na Zn_1-x(Cu)_xPO₄first increased and then decreased as Cu doping amount increased,and when x = 0. 5,the near-infrared reflectance was the highest; the reflectance of NaZn_0.5(Cu)_0.5PO₄ increased when the heat-treatment temperature increased from 400 ℃ to 700 ℃,and the reflectance reached 60.4% at 700 ℃.