Yan Garden has a history of more than 400 years since it was built in the early Ming dynasty. Taking Yan Garden as the research object, this paper mainly explores the evolution process of the campus space planning and architectural style of Yan Garden since 1919. Combined with this process, it analyzes the impact and significance of intervention among architects, as well as the requirements of users on the architecture and space planning of Yan Garden reflected in the spatial organization, axis and orientation, cultural symbols, and architectural styles of campus planning following Eastern and Western cultural integration.

The layout of the Yan Garden in the early stage greatly reflects the personal will of the architect. With the move of Peking University, in the new era, due to the increase in the number and types of users, the boundaries of Yan Garden continued to expand outwards and spontaneously generated new campus spatial axes and dynamic areas. They then connected the independent buildings into an organic whole, which shows the concerns for users’ needs instead of architect’s individual will and the significance of people in campus planning. The increase in user autonomy in campus planning enhances interaction between people, space, and information. The connection and integration of spaces with different functions fully reflect the user's own needs, allowing a dynamic and harmonious campus environment to be built and a harmonious coexistence between people and the campus to be achieved.