This research aims to develop factors and indicators of sustainable tourism and to propose public policies on sustainable tourism in Thailand. Quantitative and qualitative methods were employed, and data was collected from 400 people who live in 13 model communities of Designated Areas for Sustainable Tourism Administration (Public Organisation). The data analysis was carried out by exploratory factor analysis (EFA), using a principal component analysis together with varimax with the Kaiser Normalisation rotation method. The results indicated six factors, with 99 indicators of sustainable tourism in Thailand: (1) Entrepreneur and community (28 indicators); (2) Public policy and public management (21 indicators); (3)Natural resource and environment (28 indicators); (4) Tourist (10 indicators); (5) Economic condition (7 indicators); and (6) Society and culture (5 indicators).