There are 33 ceremonies of festival cultures for Jinpo people,Dai people,Achang people,and De'ang people in southwest of Yunnan. Under the circumstance of national policy of“One Belt and One Road”and the“Two Strength and One Bridgehead”and facing the reality of these peoples,theoretical support sustainable development can be found through field work of the historical origin and developing process of theses peoples' ceremonies of festival cultures in Southwest of Yunnan.