The Philippine Science High School was established by R.A. 3661 which was signed into law in 1963. This charter mandates the PSHS “to offer on a free scholarship basis a secondary course with emphasis on subjects pertaining to service with the end in view of preparing its students for a science career." From the first campus in Diliman, Quezon City, the PSHS has expanded into a nationwide system. The PSHS System Law (R.A. 8496) established the PSHS System and unified all the existing campuses into a single system of governance and management.

The Philippine Science High School, operating under one System of governance and management, provides scholarships to students with high aptitudes in science and mathematics.

The PSHS offers an education that is humanistic in spirit, global in perspective, and patriotic in orientation. It is based on a curriculum that emphasizes science and mathematics and the development of well-rounded individuals.

The PSHS prepares its students for careers in science and technology and contributes to nation building by helping the country attain a critical mass of professionals and leaders in science and technology.

• The main purpose of the PSHS education is the integral development of its scholars.
  


• Each PSHS scholar has unique giftedness and potentials which should be recognized and nurtured so that each one develops them to the fullest extent possible.
  


• The PSHS special science curriculum engenders in our scholars a passion for learning and inspires them to choose careers in science and technology and so contribute to national development.
  


• The PSHS is most effective in an environment characterized by all-around performance excellence, a dynamic and collaborative leadership, outstanding facilities, resources and support alliances, and an unswerving commitment of service to the nation and to one another.