Based on the three dimensions of scale, efficiency and resilience, a index system of high-quality development of tourism is constructed, the panel data of 16 cities in Shandong Province from 2001 to 2020 is used to explore the overall change trend of development quality of tourism, and the influencing factors of development quality of tourism in Shandong Province are analyzed through the panel Tobit model. The results show that the development quality of tourism in most cities shows a steady improvement trend, while the development scale, efficiency and resilience of tourism show typical heterogeneity characteristics. The level of economic development, industrial structure and the level of science and technology have a significant positive impact on the development quality of tourism in Shandong Province.The influence of each factor has obvious differences among subsystems.