Abstract: Making necessary and reasonable use while conducting strict protection is one of the biggest features differentiating national parks from nature reserves. Developing tourism appropriately is one of the leading ways to reasonably use natural resources in national parks. However, tourism has been viewed in China as fierce as flood and savage beast threatening the protection of nature. Whether it is able to and how to develop tourism in national parks of China is a huge challenge confronting Chinese national park authorities. In this paper, the author argues the necessity and significance of appropriate tourism development for national parks. First of all, developing tourism appropriately is the internal demand of national parks management, since it can help to fulfill the overall functions of national parks, including education, recreation as well as protection. Secondly, appropriate tourism development in national parks can meet the strategic need of national economic and social development in China. It can play important roles in harmonizing the contradiction between development and protection, and meeting the needs of Chinese people for good life. It is the realistic requirement to practice "Two Mountains Theory" and also an important measure to realize the strategy of "Rural Revitalization". Thirdly, appropriately developing tourism is the prevailing way to rationally use national parks around the world, and it is also proved to be the key to achieve the success of national parks management. In the end, the author makes some proposals in terms of how to promote the sustainable future development of tourism in the newly-established national parks.