The purpose of this study aimed to understand the different perspectives between managers and park users via examining questions and requests sent through e-mail to the Chief Mailbox of Yu-Shan National Park Headquarter. The results revealed that the Chief Mailbox was mainly used for information gathering and searching, particularly for travel information. Personal preferences and needs were the center concern and base of judgment for who questioned the service and management of managers. Apparently, questions regard of conservation of natural environment and bio-diversity were rarely asked. This study suggested that there was lack of understanding of the role and management policy of national park which led to many unreasonable requests and impossible to fulfill. For example, a large amount of visitors criticized the quality of cabins and huts as well as sanitary facilities, they expected park to have ‘five-star’accommodations. This study also found that the increasing number of visitors required interpretation services, which heavily depended on volunteers. Thus, managers should re-examine the policy, strategy and training of volunteers programs.