1. As a school with a long history, No.3 Middle School in University Town is rich in educational resources and teachers. Adhering to the concept of "making life more sunny", the school is committed to providing students with high-quality educational environment and teaching resources. In addition, the school has established cooperative relations with many universities and scientific research institutions, providing a broader development space for teachers and students.

2. The teaching quality of No.3 Middle School in University Town is also an important factor for it to become a key middle school. The school pays attention to the all-round development of students, and students can choose their own learning direction by offering special classes such as music, art and sports. At the same time, the school also attaches great importance to the cultivation of students' practical ability. It has several laboratories and computer rooms and adopts advanced teaching equipment and instruments to help students better master knowledge and skills. To sum up, No.3 Middle School in University Town was recognized as a key middle school in Chongqing, mainly because its excellent educational resources and quality of running schools were widely recognized.