Abstract:Lingnan is the general name of the south of the five ridges in southern China. Lingnan Royal garden in the history of Chinese garden was once brilliant but flash in the pan. With the gradual improvement of Lingnan's economy, the development of culture and art and the frequent exchange of cultural activities at international, Lingnan gardens have attracted worldwide attention for their strong local characteristics. The courtyard, as the core of Lingnan garden, can be traced back to before the Eastern Han Dynasty. It is a garden based on architectural space, which is characterized by the pursuit of free layout and obvious randomness.