Abstract: Taking red culture as the guide to realize the high-quality development of cultural and tourism integration is an important channel for the old revolutionary base areas to actively cultivate and develop new productive forces. This is also of great significance to the revitalization and development of the old revolutionary base areas in the new era. Taking 108 administrative units at county level in the Central Soviet Area of Jiangxi, Fujian and Guangdong as the research units, this study analyzed the spatial and temporal development pattern and future evolution trend of high-quality development of red cultural tourism from 2018 to 2022. The mathematical models such as kernel density, Markov matrix, NICH index and Hurst index were used. The obstacle degree model was further adopted to identify the shortcomings of integration development. The research showed that :①The high-quality development of the integration of red culture and tourism in the study area was stable and. The trend of club convergence and integration was significant, with significant internal circulation dependence and self-adaptability; ②The fusion level presented a semi-enclosed structure of ' core-periphery ' and an increasing trend of ' northwest-southeast ' in space. Based on the core growth point, an extended and radiant growth mechanism was formed, which had strong spatial stability and continuity. ③During the study period, the comprehensive sound quantity heat of the network and the total factor productivity of economic development were the most important shortcomings that restricted the development of high-quality integration, followed by supporting supply, passenger source abundance and environmental regulation, and the short-board factors.