In terms of spatial expression, in order to pursue the far-reaching scenery image and the rich and varied spatial form, Jiangnan private gardens have widely used a variety of classical garden gardening techniques such as opening, dividing, borrowing and leaking to deal with the landscape, which makes Jiangnan gardens convey a unique sense of "still hiding half her face from us behind her guitar". Specifically, the space performance of private gardens in the south of the Yangtze River is mainly characterized by two points.