The Experimental School Affiliated to Tsinghua University was established in 2003, and its predecessor was the Affiliated Junior High School of Tsinghua University, which was officially renamed in 2011 and became a complete middle school.

Tsinghua Affiliated Experimental School is often confused with Tsinghua High School, which has caused a lot of confusion to parents for more than a decade. The two schools have their own "independent" junior high and high schools, but they share teacher resources and are located on the same campus. Students from both schools go to school and play together, more like different classes on the same campus. Rather than saying that the experimental school is a shadow school of the attached middle school, it is better to think that the two schools are twin stars of each other, and the experimental school is considered by some parents to be the "glove" of the attached middle school because of its private identity.

The class type of the middle school affiliated to Tsinghua University is complex and varied, and it has been named by parents and students, and the school is also known as the "Happy Zoo". "Dragon class" refers to the 2 4 school system classes under the one-stop plan; "Ma Ban" is the Ma John Sports Specialty Class, such a cutting-edge name actually began in 1986, Ma John Class is committed to sending professional athletes to the university; "Feng Class" is a vocal music and art specialty class; Usually, after the placement test, the school will select students with good grades to form the "Tiger Class", and the students who are not selected will be placed in the parallel class. In recent years, the class type of Tsinghua High School has been relatively changeable, and "Feng Class" and "Ma Ban" have always existed, and their meanings have not changed. Parents need to be extra vigilant when learning about the online information of "Dragon Class" and "Tiger Class", the same words may express different meanings, and the type of attached middle school class has changed in recent years, but the names of various flowers have not changed.

Generally speaking, the class type of Tsinghua High School will be mirrored in the Tsinghua Affiliated Experimental School. A few years ago, when Tsinghua High School was vigorously selecting "gifted students", Tsinghua Affiliated Experimental Middle School also set up an equal number of gifted classes. After admission, the two schools will also use the same test paper for the placement test, but the class classification cannot be cross-school, and the school has not mixed non-specialty students so far, and the "tiger class" of the experimental school affiliated to Tsinghua University has also been called a "fee-paying tiger". In recent years, the number of students with art specialties has been small, and the school will merge the art students of the two schools into a "phoenix class" level for unified teaching, so that the art students of the Affiliated Experimental School of Tsinghua University can enjoy the treatment of "studying abroad".

In addition, the affiliated experimental school will also publish the enrollment brochure on the official website of Tsinghua High School, and the affiliated experimental school only recruits students from Haidian District according to the experience of previous years. With the change of class type, "Tiger Class" sometimes refers to the "experimental class" of the 3 3 system that has been recruited, but in the future, all kinds of interesting nicknames of the Experimental School affiliated to Tsinghua University may become history, and there are recent rumors that the school intends to use parallel classes.

Tsinghua Affiliated Experimental School and the Affiliated High School share teacher resources, and the difference between students is only in the class, but they can rarely get the performance information of the affiliated experimental school, which is a private school that is "tactically very cheap and strategically not taken seriously". According to the mistakes of mainstream educational institutions in Beijing, the average score of the 2017 high school entrance examination cultural course of the Tsinghua Affiliated Experimental School is about 491 points, which is relatively leading in Beijing and can also rank among the top ten in Haidian in recent years. In the past few years, the experimental school affiliated to Tsinghua University has a more distinctive way of signing a contract to go to school, in addition to signing a contract with the experimental class of the department, there are various types of ordinary classes and experimental school classes of the department.

Compared with the affiliated middle school, the source of students in the affiliated experimental school is relatively uneven, and the class style is not as good. Compared with the private branches of the same type of famous schools, the teaching staff of the Affiliated Experimental School of Tsinghua University is obviously superior, and the tuition fee is 7,500 yuan/semester; The accommodation fee is 1,500 RMB/semester.