The Khmer people in our country have more than 700.000 people, living mainly in the South, especially in the Mekong Delta province, the people live stretching along the dunes (floats), into the Phum, Srok interspersed with the Vietnamese and the Chinese. In the spiritual life of the Khmer, it is impossible not to menon Buddhism. Theravada Buddhism was introduced to the Khmer here in the 13th century and became their official religion. Due to the need to perform religious ceremonies and spiritual activities for people in different regions that Khmer pagoda was born. This article uses the method of applying the functional theory of Radcliffe - Brown and B. Malinowski together with scientific and practical data obtained through fieldwork - experience and text analysis with the goal of making clearly understand the functions of psychology, morality, community cohesion, emphasizing the role of ethnic cultural education of pagodas for individual life and Khmer community in the South in the current context. The results show that the Khmer Temple in the South is a sacred space that plays an extremely important role in the cultural, religious and spiritual life of the Khmer people in the Southern region in preserving and promoting cultural values nationalization.