The concept of China's national parks refers to the establishment of large-scale nature reserves with significant natural, cultural, and scientific values. These parks aim to protect species, maintain the integrity of ecosystems, ensure basic ecological needs, and achieve sustainable utilization through the improvement of the nature conservation and utilization system. They are gradually developed into internationally renowned nature reserves that play an active role in China. The construction of China's national parks is an effective approach to promoting the concept of ecological civilization. It is also a crucial component of China's system of nature reserves. Since the release of Pilot Program for Establishing a National Park System in 2015, the Chinese government has successively carried out pilot projects for the national park system. In 2021, five national parks were officially established. This article collects policy materials related to national parks since 2015 and provides an in-depth analysis of the current status of China's national park construction. We found that China's national park construction has generally achieved its objectives. However, there were areas that require further improvement. Regarding the construction of future national parks, we propose the following suggestions: 1) Improve the spatial layout planning of the national parks; 2) Plan and integrate on a watershed basis; 3) Determine the minimum area for eastern and western national parks; 4) Determine the upper limit of the number of national parks; 5) Establish cross-border national parks; 6) Include cultural protection in national parks; 7) Establish a unified management system; 8) Establish a unified internal control zoning system for national parks; 9) Form a differentiated sustainable development model for three types of protected areas. As the top-level design of China's national parks continues to improve, the construction of a national park-centered system of nature reserves will provide a more comprehensive and systematic approach to ecological protection and resource management. It will further advance the development of ecological civilization, aiming to achieve the ecological conservation, sustainable utilization, and a harmonious coexistence between human and nature.