Sydney Technical High School is an academically selective school for boys. Entry is through the NSW selective entry test in Year 7. In Year 11, the school accepts an additional number of students for senior school.
The school has a wide drawing area, and students come from many different primary schools. The student population is stable with retention rates of 98%. The school is 90% Non English Speaking Background (NESB), with 30 different cultural groups represented. 42% are of Australian Chinese origin.
The school is well supported by parents and the community. The school promotes academic excellence for gifted and talented students, underpinned by strong wellbeing systems. The broad curriculum and diverse extracurricular activities meet the unique needs of gifted and talented boys.