Among the high schools in Changsha, China, several institutions are renowned for their academic excellence and rigorous curriculum. Based on various rankings and educational data, the following schools stand out:

1. Changsha No.1 High School

2. Changsha No.2 High School

3. Changsha No.4 High School

Changsha No.1 High School is consistently ranked among the top high schools in China, with a strong focus on science and technology education. According to the 2020 China University Entrance Examination (Gaokao) results, the school achieved an impressive average score of 690.7, which is significantly higher than the national average.

Changsha No.2 High School is another top-performing institution, known for its comprehensive curriculum and emphasis on both academic and extracurricular activities. The school has a long-standing reputation for producing high-achieving students, with a Gaokao average score of 685.6 in 2020.

Changsha No.4 High School is recognized for its strong arts program, offering a unique blend of academic rigor and artistic education. The school has a history of producing students who excel in both academic and artistic fields, with a Gaokao average score of 680.2 in 2020.

These schools are highly regarded due to their exceptional teaching staff, state-of-the-art facilities, and a strong emphasis on student development. The data from the Gaokao, China's national college entrance examination, serves as a reliable indicator of the schools' academic performance and the quality of education they provide.