在对秦陵铜车马彩绘取样分析的基础上 ,对其保存环境湿度进行了模拟测试 ,以红、白、蓝、绿4种矿物质颜料为代表 ,通过改变环境湿度、温度和有无光照等来考查色差值 ΔE的变化情况。结果表明 :在无光照条件下 ,湿度对彩绘颜色变化影响不大。在光照条件下 ,湿度、紫外线和光化学反应等因素的综合结果 ,其保护湿度应控制在 44%～ 55%的范围内为宜 On the basis of sampling and analysis of copper car and horse painted in Qinling Mountains, this paper simulates and tests the storage environment humidity. Taking the four mineral pigments of red, white, blue and green as representative, by changing the humidity, temperature and the presence of light To examine the color difference ΔE changes. The results show that: in the absence of light conditions, humidity has little effect on the color change of the painting. In light conditions, humidity, UV and photochemical reactions and other factors combined results, the protection of humidity should be controlled within the range of 44% to 55% is appropriate