Abstract: The Tang Dynasty was a transitional period of Chinese sitting culture, with significant changes in seating furniture and posture, during which the image of sitting increasingly entered the aesthetic field. The description of solitary sitting scenes in Tang poetry has not only significantly increased in quantity compared to the preceding dynasties, but also expanded in content and artistic techniques, especially in the construction of solitary sitting spaces. Tang Dynasty poets further enriched the space for sitting alone, and also focused on connecting indoor and outdoor spaces, forming a broader poetic space. Tang poetry created a solitary atmosphere space through natural and artificial objects, endowing solitary sitting with diverse aesthetic atmospheres and more poetic charm. Tang Dynasty poets depicted sitting alone from both aesthetic and introspective perspectives, deepening and exploring the psychological space of sitting alone. This aesthetic posture shaped by Tang poetry had a profound impact on similar descriptions in poetry during the Song Dynasty and beyond, as well as artistic creations in fields such as painting.