Before liberation, Peking University and yenching university were two different universities. Peking University is a national university, yenching university was founded by the American Church, and its president is Si Tuleideng, the American ambassador to China. After the founding of People's Republic of China (PRC), the state reorganized universities. Yenching university's liberal arts merged into Peking University, and science merged into Tsinghua. Peking University moved to Yanyuan, the former yenching university campus, which is now Peking University campus. This is the relationship between the two schools.

1. Peking University, abbreviated as "Peking University", was born in 1898, formerly known as Shi Jing University Hall. It was the first national university in modern China, and it was also the earliest school founded in the name of "University". Its establishment marks the beginning of modern higher education in China. Peking University is the only school established as the highest institution of higher learning in modern China. At first, it was also the highest educational administrative organ of the country, exercising the functions of the Ministry of Education and being in charge of national education. Peking University gave birth to the earliest modern academic system in China and initiated the earliest university disciplines in China, such as liberal arts, science, social sciences, agriculture and medicine. He was the founder of higher education in China in modern times.

2. yenching university yenching university is one of the universities jointly founded by four Christian churches in the United States and Britain in the early 20th century, and it is also one of the largest universities with the best quality and the most beautiful environment in modern China. It was founded in 19 19, and its president is Si Tuleideng. Once established Harvard Yanjing Society in cooperation with Harvard University in the United States, enjoying a high reputation at home and abroad.

3. In the national 1952 college adjustment, yenching university was cancelled. After the defeat of the Kuomintang government in Taiwan Province Province, yenching university merged into Chung Chi College of the Chinese University of Hong Kong. In Chinese mainland, after its assets were taken over by the Central People's Government, most of arts and sciences were merged into Peking University, engineering was merged into Tsinghua, and law school and sociology department were merged into Beijing Institute of Political Science and Law (now China University of Political Science and Law). The school building was taken over by Peking University, and its building is still a monument in yenching university.