Tuanjiehu Park, as an urban oasis in Beijing, can reveal its deep cultural and philosophical significance from the perspectives of Eastern and Western philosophy. From the perspective of Eastern philosophy, Tuanjiehu Park embodies the Taoist idea of "harmony between man and nature". The natural landscape in the park, such as lakes, trees, flowers and plants, coexists harmoniously with man-made pavilions and towers, symbolizing the harmonious coexistence of man and nature. Taoism emphasizes conforming to nature. The design and layout of the park retain and imitate the natural form as much as possible, so that tourists can also feel the tranquility and beauty of nature in the city, reflecting the philosophical concept of "ruling by inaction". At the same time, as a place for citizens to relax and have fun, the park also embodies the Confucian idea of "harmony". People communicate and interact in the park, promoting social harmony and unity. From the perspective of Western philosophy, Tuanjiehu Park reflects the philosophical ideas of humanism and existentialism. Humanism emphasizes the value and dignity of human beings. The park provides citizens with a space to get close to nature and relax, reflecting the care and respect for people. Existentialism focuses on individual existence and freedom. The free and open space in the park allows everyone to choose different activities according to their own wishes and interests, which reflects individual freedom and choice. In addition, the publicity and openness of the park also reflect the idea of social contract theory, that is, people achieve social order and harmony by jointly maintaining and using public spaces. In summary, Tuanjiehu Park is not only a combination of natural and cultural landscapes, but also a meeting point of philosophical thoughts. Whether it is the Eastern ideas of "harmony between man and nature" and "harmony", or the Western ideas of humanism, existentialism and contract theory, they are all vividly reflected here.