C9 is the first university alliance among the top universities in China.

From June 9, 2009 to June 9, 2009, the seventh series of seminars on the construction of first-class universities was held in Xi Jiaotong University.

At the meeting, representatives from nine top universities including Peking University, Tsinghua University, Zhejiang University, Fudan University, Shanghai Jiaotong University, Nanjing University, China University of Science and Technology, Harbin Institute of Technology, and Xi Jiaotong University, among the first batch of 985 engineering universities, unanimously agreed to sign the Agreement on Cooperation and Exchange of Talents Training in First-class Universities according to the principle of "Complementary Advantages and Sharing Resources" to jointly cultivate top talents.

The nine-school alliance is similar to the Ivy League in the United States, the Russell University Group in the United Kingdom and the Eight-school Group in Australia. It aims to strengthen cooperation and exchanges in the fields of personnel training and scientific research and realize complementary advantages.

After the establishment of the alliance, a number of substantive activities have been carried out, such as exchange students and summer camps. To some extent, C9 represents the top strength of higher education in China.

Social evaluation:

The "Nine Schools Alliance" has opened up a new situation of talent training and played a demonstration and leading role in talent training in China.

After the alliance is established, "exchange students" will be extended to domestic universities. When an undergraduate student of an alliance university wants to take a course in another alliance university, he only needs to apply to the academic affairs office of the other university, and the other university will consider replying to his application according to the number of students and other factors. After the application is passed, the student can study in the other university and return to the original university after completing the credits. The original university recognizes his course scores and credits.

In addition, according to the "Nine Schools Alliance" agreement, each school encourages its students to apply for graduate students from other universities in the alliance, and also encourages graduate students to pursue doctoral degrees from other universities in the alliance.