Natural ecological security and cultural characteristics embody the value pursued by cities in the process of urbanization. Park City planning highlights the ecological value and humanistic care, and introducing cultural and environmental theory is conducive to the dynamic protection of Park City cultural resources and the ecological and cultural environment. This article takes the dynamic cultural protection of Park City as the core issue, and it puts forward the applicability of cultural ecology in the cultural protection of Park cities; Analyzes the function mechanism of urban cultural species and their living environment, and forms a cultural ecosystem composed of cultural clusters, cultural clusters, and other elements; According to the functional connection and influence mechanism between cultural resources and landscape space, this paper summarizes the dynamic protection strategies of urban culture at the regional, urban and community levels: the construction of cultural ecosystem, the coordination of cultural ecosystem, and the social development of cultural activities. Finally, it takes the Dazu District of Chongqing as an example and is based on identifying elements of the cultural ecosystem and the ecological deduction process of cultural species. As a result, we can realize the dynamic protection of major cultural species such as Dazu stone carving culture, hardware culture, and Haitang Xiangguo culture, and achieve the urban development goal of “cultural people, cultural revitalization of the city, and cultural habitat”.