In Southeast Asia, there is a small but amazing country; it only has 600 million populations and 513120 km2 area.[1] Thailand has rich sources for travelling: mysterious temples, beautiful islands, nice beaches, delicious foods, marvelous cultural, all those elements deeply attract people from all over the world. Each year, around 11 million visitors [2]go there. Actually, tourism in Thailand plays an important role in the Thai economic structure even in the whole society, and it has a profound effect on Thai economy. Tourism has been criticised for having negative impacts on many of the destinations which tourists visit. There are considered to be three principal impacts - economic, environmental, & socio-cultural.