Abstract: This paper describes the development status of light-storing and reflective material, including performance and spectrum experiments aimed at optimizing the energy consumption and operational safety of highway tunnels. The authors systematically analyze the effect of tunnel light-storing and reflective materials used for auxiliary energy-saving lighting based on the concept of mesopic vision using a calculation method with a spectrum S/P value. The results show that: 1) the measured diffuse reflectance of light-storing and reflective material is about 80%,and the percentage of electric energy savings can reach about 15% with this material when used in tunnels; 2) due to the unique material composition of the light-storing and reflective material, its reflecting function significantly improves the spectral distribution of LED lamps and car headlights, and also increases the S/P value of the original light source; 3) the changing rules of S/P value accord with the theoretical cognition on light and color response of human eyes under mesopic vision, and it is an effective and reasonable evaluation method relative to the tunnel′s reflective spectrum.