The Officer Cadet School (OCS, Chinese: 见习军官学府, Malay: Sekolah Pegawai Kadet, Tamil: பயிற்சி அதிகாரிப் பள்ளி)[3] is a military training centre that trains commissioned officers for the four branches of the Singapore Armed Forces (SAF): the Army, the Navy, the Air Force, and the Digital and Intelligence Service.

On 16 July 1967, only 117 of the 300 cadets successfully completed their training and received their commissions at the SAFTI parade square.

SAFTI received its colours from Prime Minister Lee Kuan Yew in a ceremony on 16 June 1968.

[1] In 1969, six women from the People's Defence Force were offered positions for officer training at SAFTI owing to their outstanding performance.

[1] In 1972, a "scholars platoon" was introduced in OCS to encourage cadets with better qualifications to take up government-sponsored scholarships for further training.

In the 1970s, after the National Service duration was shortened from three years to two years and six months, OCS introduced a nine-month Standard Military Course on 26 December 1974 to improve officer training and provide officers with a longer service period after commissioning.

Officer cadets were selected primarily on the basis of their academic qualifications and extra-curricular activities before they enlisted for National Service.

[1] On 1 June 1980, OCS became OCS-SAFTI and a nine-month Infantry Officer Cadet Course was introduced on 1 September 1980.

[1] The SAFTI Military Institute was opened was 9 June 1990 and a new 42-week Tri-Service Officer Cadet Course was launched on 17 September 1990 by Lieutenant-General Winston Choo, the Chief of Defence Force.

[1] The current Officer Cadet Course is 38 weeks long and divided into three terms: Service, Professional, and Joint.

[11][8] All cadets attend the Joint Term at the SAFTI Military Institute in the last three weeks, during which they learn how the three service branches work with each other and rehearse for their Commissioning Parade.

Majority of the Corps is made up of direct entry officer cadets straight out of basic military training at the BMT Centre, with graduates of the Specialist Cadet School and career soldiers and specialists forming the rest.