Abstract: The first five national parks were officially established in China in 2021, marking the further improvement of the nature reserve system with the establishment of national parks as its core. Rewilding theory emphasizes the natural restoration process of self-sustaining wilderness landscape ecosystems, which has important significance for the construction of national parks. The paper firstly introduces the origin of the idea of wilderness protection and sorts out the process of ideological transformation from wilderness conquest to wilderness protection, and secondly proposes the connotation and methods of rewilding, arguing that rewilding has expanded from the "3C" (Core, Ecological Corridor Corridor, and Carnivore Carnivore) model to It includes various rewilding methods adapted to different areas, such as Pleistocene rewilding, trophic rewilding, ecological rewilding and passive rewilding. Afterwards, the planning texts of the first five national parks in China were manually interpreted and analyzed, and the NVivo text analysis tool was used to analyze the planning texts of the five national parks in China as a whole, suggesting that the construction of national parks in China embodies the "3C" model of rewilding, but is little related to other rewilding approaches. In the light of the latest rewilding approaches and guidelines, we propose thoughts and suggestions for the future development of national parks in China.