Established in 1865, Shanghai High School has an overall size of 223,617 square meters and is historically one of the most well-known schools in China as well as around the world.

Shanghai High School International Division (SHSID) was founded in 1993. At present, approximately 2,800 students from over 60 countries and regions are enrolled.

SHSID became an International Baccalaureate (IB) world school in 1995. SHSID is authorized by the College Board to administer AP, SAT and PSAT exams and is an authorized TOEFL exam center. Since 2014, SHSID has been approved as an International AS & A-Level School. In 2018, SHSID was awarded accreditation by AdvancED (COGNIATM).