Nong Han is the lake covers an area of 125.2 km² and is the largest natural lake in northeast Thailand. The main river feeding the lake is the Nam Pung, which originates in the Phu Phan Mountains south of the lake. The outflow of the lake is the Huai Nam Khan to the southeast, which mouths into the Mekong. This place is an ecotourism attraction with high potential, which has a tendency to develop as a tourism asset of high quality conform to an eco-tourism attraction standard of the bureau of Tourism Development, Thailand. The factor analysis that are contribute to the strategic planning and blueprint of tourism destination development and enhance the value of holistic community economics. It is necessary to study in depth in order to know the essence of the indicators of eco-tourism development. The main research objective is shown using exploratory factor analysis (EFA) based on critical variables and collected qualitative data from local residents by purposive sampling technique. The findings reported that a data analyst has a messy set of 21 variables, which run a factor analysis to see the variables can be reduced to a smaller set of variables which have eigenvalues more than 1, that have 6 retained factors of impact affecting on eco-tourism development at Nong Han Lake – that is, Factor 1: Training and Knowledge transfer, Factor 2: Economics management, Factor 3: Environment and Conservative Resources, Factor 4: Community Participation, Factor 5: Impact Assessment, and Factor 6: Mentoring and Coaching.

Keywords : Eco-Tourism, Sustainable Tourism, Factor Analysis, Tourism Development, Impact Of Tourism, Host Community.