Currently, China's tourism industry has entered a new stage of mass tourism development. Under the background of consumption upgrading, tourists' demands for tourism products and service quality are becoming increasingly diverse and personalized, and higher requirements are put forward for tourism experience. However, the traditional tourism development model still has structural problems such as insufficient product innovation and lagging public service support. The mismatch between supply and demand has become the core bottleneck restricting the high-quality development of China's tourism industry. This article summarizes the core manifestations and formation logic of the supply-demand contradiction in China's tourism industry, summarizes the practical path of promoting tourism policy reform towards supply-demand balance in recent years, and finally looks forward to the future breakthrough direction of achieving dynamic supply-demand balance in the tourism industry, providing theoretical reference for promoting high-quality development of China's tourism industry.