With the vigorous development of China urbanization and increase of people's environmental consciousness,landscape design had received more and more attentions in urban construction and planning.However,the planning for mountainous new countryside construction and landscape design had not been emphasized.Hence,how to make use of natural and cultural landscape factors in mountainous areas to conduct landscape design in new countryside construction was an issue needed to be highlighted.According to the field study of natural villages and residences of Longnan City in Gansu Province,the paper had discussed the composition of mountainous settlements and residences,the composition of mountainous rural landscape factors and landscape planning principles,hoping to provide reference for rural landscape design and new countryside construction.