Abstract: The eco-tourism resources are the ecotourism development cornerstone. Reasonably use the eco-tourism resources and develop ecotourism without destroy the environment is the key of tourism sustainable development, is also very important to realize the win-win objectives of ecological environment and the social economy. Through on-the-spot investigation, the author divided the 419 eco-tourism resources monomer of southeastern (including the Nyingchi area and the Qamdo area) into 14 ecology tourist areas and 77 eco-tourism sub-region. Used the method of factor analytic and fuzzy quality synthetic evaluation, this article has evaluated the landscape quality scale of 77 eco-tourism sub-region and discussed that the sightseeing eco-tourism products, vocational eco-tourism products and the special eco-tourism products are the predominant type to develop eco-tourism product.