Abstract: In 1872, U.S. President Ulysses S. Grant signed a congressional legislation to officially establish the world's first national park, Yellowstone National Park, thus embarking on a journey to protect the native natural resources. The United States could take the lead in establishing the world's first national park, which was closely related to its inherent cultural ecology. From the perspective of cultural ecology, this paper elaborates the historical background of the establishment of national parks in the United States, explores the reasons behind the establishment of national parks, and reveals the close relationship between the rise of national parks and American Protestant culture. This paper reviews the development process of the national park from its birth to the formation of the national park system in the United States, combines the practical experience of the United States in the operation and management of the national park system, and provides beneficial enlightenment and reference for China to establish its national cultural parks in the new era.