Abstract: National park planning is the premise of orderly management and maintenance of national parks, and it is an indispensable core content in the construction of national parks. This paper is based on 2 454 English documents included in the core collection of Web of Science (WoS) and 357 Chinese documents included in CNKI. The CiteSpace and VOSviewer softwares were used to visually analyze the research context, research subjects, research themes, and trends of national park planning. The results showed that the research heat of national park planning continued to rise in the world and the research practice in this field abroad its cooperation network was complex, its research perspectives were diverse, and its research methods were mature. Researches focused on biodiversity planning, ecotourism planning, and management planning. The future research trend is mainly to deal with climate change and ecosystem services. Although China started late in this field and the cooperation network was relatively simple, it has also developed rapidly, initially realizing the transformation from theory to practice. The research focused on spatial planning, ecotourism planning, and community planning. The future research trend is mainly the construction of a nature reserve system with national parks as the main body from the perspective of land spatial planning. Based on these results, this paper put forward that future researches on national park planning should gradually deepen in the aspects of planning management framework, planning system and technology, ecosystem protection, and community planning, so as to enrich the research perspective and content of national park planning and provide theoretical reference for further establishing the nature reserve system with national parks as the main body.