In 1938, the Australian Commonwealth Naval Board (ACNB) identified the need for a general purpose 'local defence vessel' capable of both anti-submarine and mine-warfare duties, while easy to construct and operate.

[6] The need for locally built 'all-rounder' vessels at the start of World War II saw the "Australian Minesweepers" (designated as such to hide their anti-submarine capability, but popularly referred to as "corvettes") approved in September 1939, with 60 constructed during the course of the war: 36 (including Geelong) ordered by the RAN, 20 ordered by the British Admiralty but manned and commissioned as RAN vessels, and 4 for the Royal Indian Navy.

[1] On completion, the corvette was assigned as a minesweeper and anti-submarine patrol ship along the east coast of Australia, before being redeployed to New Caledonia on 8 March 1942 to perform similar duties.

[1][10] In June, the ship began convoy escort runs between Sydney and Brisbane, which continued until January 1944, when she sailed to Adelaide for a two-month refit.

[1] Using Milne Bay as a base of operations, the corvette served as a convoy escort and anti-submarine patrol ship throughout the South West Pacific Area.