The research and construction of scenic roads and acoustic landscapes in developed countries represented by Japan have signi cantly promoted the development of China's music highway. However, due to the lack of domestic technology and lack of relevant experience, design  aws in music roads, especially in curves. This article analyzes the basic principles of music road sounding and proposes the theory and practical optimization design method of the curved road surface of music road. Primarily due to the unequal length of the two sides of the curve and the difference in tire speed on both sides of the car, the actual construction process needs to Note that the groove pitch and width need to change with the curve arc.