The Yushan National Park Administration wants to cope with the severe problems of trash and excrement produced by the increasing number of visitors, especially in chilling climbing trails and camping areas deeply in mountain areas all year, lacking utility and access. It is expected that this study could solve the problems of trash and excrement. A questionnaire study was conducted on Yushan-mountain’s climbers on holidays or non-holidays with 407 effective samples systematically sampled-out. The results are shown as follows: in trash processing, the vistors of 50.4% ‘very favoured’ and 35.1% ‘favoured’ carrying out trash separating and recycling, and 81.5% vistors thought that the trash should be brought out when they left the mountain area. Moreover, 71.5% vistors thought that the trash and the resources trash should be borught out when they left the mountain area, respectively. For effective solutions to the trash problems, 44% vistors thought that should be fined by the National-Park’s laws; secondly, 23.3% vistors thought that the present management (the vistors bring out the trash themselves while leaving the mountain area) should be kept on. In excrement processing, most of the vistors (56%) thought that the lavatories were extremely shortage in mountain areas. The 54.8%visistors weren’t satified with lavatories of mountain area. 56.1% vistors thought that the treating equipment was insufficient; 44.6% vistors thought the sanitary problem of the lavatories were very severe. 54.8% vistors did think the lavatories very dirty. And 90.2% vistors thought bai-mo-lin was the best place for newly constructed lavatory.