1. Background and motivation of research To cope with the growing amount of trash and excrements produced by the increasing number of visitors, the Yushan National Park Administration is working hard to find solutions for the issue, especially in chilling trails and camping areas deep in mountain areas all year, lacking utility and access. It is expected that this study could provide effective solutions to the problems of trash and excrements. 2. Research approaches This study is conducted through a questionnaire on visitors (with a total of 460 effective samples), expert interviews, field surveys, literature review and cost analysis among others. 3. Results and suggestions (1)trash processing: It is an opinion shared by most visitors that they should take the trash with them when leaving the mountain area and they are willing to cooperate with trash separation and recycling. All the Yushan National Park Administration has to do is have 5 or 7 types of resource-recycling cans and trash carts for regular trash at the entrance to the mountain. To further enhance trash processing,separating and recycling, an inspector could be designated in the entrance area for campaigns with incentives and inspection. (2) Excrement treatment: The research team has conducted surveys in 7 huts and camping areas near Tatajia and Donpu and it is determined that except for the Laonun-Stream Camping Area, where the Qingfu-Niam flush-free system is recommended, the following are recommended for most of the huts and camping areas: ?? Qingfu-Nian seat and the dry-type eco-friendly integrated system developed by the Industrial Technology Research Institute; the ?? Qingfu-Nian flush-free water closet treatment system and then ?? the dry-type eco-friendly integrated system developed by the Industrial Technology Research Institute.?? The KOT biochemical W.C. given in is the last option. (3) As of the clean-up fee analyzing: If visitors are asked to pay clean-up fee for the trash they leave in the mountain, the minimum charge would be NT$64.7 and when it comes to paying all trash from the Tatajia area, the charge would go up to NT$97 per visitor.