1. theme: it is the main idea or core content of the old-age building, and its main purpose is to form or strengthen the architectural characteristics. Second, culture: the soul of architecture. Culture is not only reflected in the characteristics of architecture, but also becomes the main attraction of architectural tourism. Third, ecology: pay attention to the integration and unity with the natural environment, mountains and rivers. Landscape: Developing and utilizing natural landscape resources to create pleasing landscapes is another trend of old buildings. 5. Leisure: We go to this place to relax, so we must pay attention to leisure in its design. (Sitting bored, what kind of customers do you expect? Sixth, health: what should the elderly pay attention to and stay healthy. Seven, security: security can not be guaranteed, someone will come.