Through the field investigation of a typical ancient town in west Sichuan,Huanglongxi Town in Shuangliu County of Chengdu City,Fengshui orientations,characteristics of folk dwellings,the Hakkas buildings and stilt-building culture in the study area were analyzed from the perspectives of geographical location,overall layout and residential culture.The representative layouts of ancient Fengshui doctrines were stressed,such as "carrying the yin at its back and the yang in front,backing on mountains and facing water","four gods at four directions"(Azure Dragon in the left,White Tiger in the right,Black Tortoise at back and Vermilion Bird in front).Moreover,primitive architectural style and rhythm of the continuous rows of buildings,"seven streets and nine lanes",and overhanging eaves in the ancient Huanglongxi Town were demonstrated.The study is of great referential value for researches on architectural landscapes of ancient towns in west Sichuan,and modern architectural landscape designs.