Making use of visitors' management regulations can reduce the environmental impacts caused by overuse. Taking the Guan-duh Natural Park as an example, the visitors' management regulations are divided into two categories: the direct ways and the indirect ways. In addition this research tries to understand how visitors' environmental knowledge and environmental conservation opinions can influence their attitudes toward visitors' management regulations. The results of this research show that: 1.Visitors with more environmental knowledge give more agreement on visitors' management regulations. 2.Visitors with less environmental knowledge need more interpreting and tour guiding services. 3.Visitors with more environmental conservation concepts give more agreement on visitors' management regulations. 4.Visitors' background can cause the differences on their environmental knowledge and environmental conservation opinions.