Abstract: The environmental geology resources for tourism is a part of geographical environment,and with its own attributes.It is helpful for the environment protection to sum up these features and to analysis the relationship between them.The Three Rivers region is located in the deep valley of Hengduanshan Mountains in northwest Yunnan Province,where the Nujiang River,Lancangjiang River and Jinshajiang River run parallelly,with rich geologic resources for tourism.The authors conclude the features about the environmental geology resources for tourism on the basis of an investigation on the Three River region,and then propose some advices on protecting the environmental geology resources for tourism in the region.