Shihai High School, founded in 1980, is a young and energetic school. After more than 20 years of efforts, it has now developed into a key complete middle school directly under the Provincial Department of Education, with two campuses. The middle school affiliated to Shihai University has 273 faculty members and nearly 3 100 students. Among them, there are 4 special-grade teachers, 2 national-level backbone teachers, 2 provincial-level outstanding experts and 7 provincial-level backbone teachers, and senior and intermediate teachers account for about 68% of the school's teachers.

For more than 20 years, the secondary school affiliated to Shihai University has been determined to reform and innovate in the process of implementing educational reform, promoting quality education and establishing civilized schools, and the quality of education and teaching has been continuously improved. When the starting point of students is relatively low, the admission rate of college entrance examination has risen from few to as high as 95.8%, and the key lines have broken through the 50% mark. A group of students were admitted to key famous universities such as Tsinghua and Peking University. The students of the middle school attached to this school have won many awards in academic competitions. The affiliated middle school is also recognized as a strong sports school in middle schools in Hainan Province, and has made great achievements in the track and field games for middle school students in the province. In August 2003, Huachuang Institute and Nanyang Girls' Middle School enrolled five junior high school students in Hainan at public expense for the first time, including three affiliated middle schools. In 2004, two more students were listed. Now the affiliated middle school has been approved to establish a Chinese middle school education base for overseas Chinese children, which is the first middle school in Hainan Province to obtain the qualification to recruit overseas students.

Now the affiliated middle school students have put forward the school-running goal of "practicing hard, creating a new career, and striving to build a well-known national model middle school", and clearly put forward that "people-oriented, everything is for the development of students, and everything is for the development of the school; Responsible for students' further education, but also responsible for students' lives. In teaching, the new concept of "hierarchical teaching, low entrance, high entrance" is put forward, and teachers are encouraged to "walk into the hearts of students and grow up with them". In school management, we put forward the slogan of "standardization and freedom", strengthen the system of establishing rules and regulations, run schools according to law, and strive to build an "educational network combining school, family and society" The affiliated middle school is equipped with full-time student life counselors and teachers who are responsible for the management of students' dormitories, and also equipped with full-time psychological teachers to offer psychological courses to provide students with psychological counseling services, so that students can achieve physical and mental health. The students attached to the middle school have reason to believe that through their unremitting efforts, they will be able to achieve the goal of creating a "first-class, nationally renowned and influential demonstration middle school" in Southeast Asia.

The new affiliated middle school campus is located on the east bank of the scenic Nandu River, with convenient transportation, covering an area of 150 mu, with a school scale of more than 3,000 students and more than 60 classes. In September 2003, the new campus was officially opened. This is a school with unique design style, complete equipment, beautiful scenery and rich cultural characteristics. The school now has first-class student dormitories, student canteens, first-class laboratories and classrooms in the province. There are standard 400-meter plastic track sports ground, basketball court, volleyball court and high-end gym. Become a beautiful scenery on the east bank of Nandu River.