Apart from the outstanding historical value, based on the perspective of traditional garden design, Yuyuan Garden is also an example of high-quality garden reconstruction in modern times. Focusing on the several main spatial changes of Yuyuan Garden since 1949, the article summarizes the character of each change in terms of the overall layout and the specific element. Based on this, the landscape arrangement and artistic conception of the reconstruction in the 1980s are analyzed in detail. It was the master of the Chinese classical garden CHEN Congzhou who took charge of the reconstruction. For the spatial arrangement and conception, the opposite scenery of the pavilion and hall each has its own merits, while the change of rhythm reinforces the spatial characteristic and makes the space lively. Thus, the overall atmosphere of “spaciousness and clearness” is successfully built. Meanwhile, the existing landscape and the added ones were nicely structured in the reconstruction, and the spatial experience of the east part fit in well with that of the rest parts of the garden, which made the space-time experience integrated and the history-reality relationship reconciled. The landscape design of Yuyuan Garden not only strengthens CHEN’s garden construction theory, but also carries the feeling and aspiration of a traditional Chinese scholar, by which the belief of a traditional landscape gardener and the expectation for traditional garden art is indicated.