With the rise and the rapid development of sites tourism,the sustainable development of sites tourism gradually become the core concern of sites tourism,how to evaluate the level of sustainable development of a site tourism development projects has become the a major subject of study of industry and researchers.

On the basis of determining the technical and economic appraisal concept for tourism projects,this thesis studies the significance,purpose,mission,fundamental content and priority content of the method which uses the technical and economic appraisal concept to analyse the feasibility of tourism project development.

The environment impact assessment of tourism development construction project in there,it should be according to the special nature and social environment condition,completely and note emphasis to analyse and forecast the environment impact of tourism development construction project,then contrapose the impact and give the feasible and effectual environment protect measure.