The paper studies the environmental color of landscape along the Sun Yat-sen Mausoleum axle wire, and utilizes qualitative and quantitative methods to analyze its color features and expressions of landscape color intention designed by Lyu Yen-chih. Aiming at the current alienation phenomenon of landscape environmental color in the Sun Yatsen Mausoleum and spatial form along its axle wire, the paper studies environmental color problems along the southern section, middle section and northern section of its axle wire separately, and explores the optimization methods of landscape environmental color based on color quantization technology.