How to solve those kinds of problems and how to get the containable development of society,economy,culture and environment in the course of ecotourism development,there is a identified way,that is to build the ecotourism certification system.

Tourist acceptance is a key for susscuss in marking ecotourism certification product in the world.

It becomes an urgent task to establish an ecotourism certification system to conduct the sustainable development of the ecotourism industry which suffers from the serious threatening caused by the abuse and extension of the concept of "ecotourism".

Based on the introduction of ecotourism accreditation definition and its significance, this paper explained three famous ecotourism accreditation systems in the world: Green Globe 21, The National Ecotourism Accreditation Program of Australia and Smart Voyager Ecuador.

Up to now,the sway ecotourism accreditation held in China is rather limited and there are several limiting factors in its implementation.

Study on Development of Eco-tourism in Fukang City;

Systematic Planning and Mangement of Eco-tourism in Nature Reserves;

Analysis on the Influence on Eco-tourism of Yuliangzhou Caused by the South-to-North Water Transfer Project;

Current Status and Strategy of Ecotourism Development of Mangrove Wetlands in Shenzhen;

Environmental Impact from Ecotourism and Control Strategy;

Study on the environmental capacity of the wetland ecotourism in Minjiang River estuary;

Circulation economic theory and development of ecological tourism;

Production of scene telefilm in forest ecological tourism;

The current water environment of Tianmuhu Lake and countermeasures for the sustainable development of the ecological tourism;