The author concludes that tourism at the Karen village, Jai Dee Village, is an additional economic activity for the families. It is not something to replace agricultural activities, which are still important to the villagers. The villagers still put some significance on economic activities. However, only a few families substantially benefit from this kind of tourism. In fact, the villagers have not completely abandoned their traditional lifestyle and economic activities. They still maintain the shifting cultivation practices, because they are close to their religion and spiritual beliefs. Tourism does not only increase incomes, but also causes undesirable impacts, such as pollution from garbage by tourists, noise pollution at night time, and an invasion of villagers’ norms and values. Tourism brings the village in contact with economic marketing, which is especially related to power and dependency. Trekking tourism was established and controlled by trekking companies in Chiang Mai and Thai people around the village. The villagers are at the bottom of the ladder. Most benefits from trekking tourism fall into the hands of these companies and Thai intermediaries, with few going to the villagers. At the same time, the villagers try their best to maintain their status because tourism is meaningful to them. It is difficult for the villagers to change these unequal power and dependence situations. On the other hand, it is also difficult for them to refuse this tourism business because they need more income. What needs to be changed is their position of being dominated. In this investigation, trekking tourism has proved that socio-economic changes are important factors for others to change at the village. Environmental degradation and state policies are also related to tourism. Environmental degradation and the state policy on hunting and forest-clearing prohibition make it difficult for the villagers to maintain their conventional lifestyle. One compensation is that the villagers can find other ways to supplement their incomes. That is where trekking tourism comes in, which also brings changes to the community. Tourism development at Jai Dee Village has been integrated into the national economy. This is how the Karen villagers have become a part of the Thai society.