The unit was formed in 1921 and consisted of the field artillery batteries based in the South Island.

[5][6] During the Second World War the regiment remained in New Zealand as part of 5th Division and provided home defence as well as training for artillerymen to be sent overseas with the 2nd and 3rd New Zealand Divisions.

The territorial force was reconstituted in 1948 and compulsory military training returned in 1950.

[9] The regiment continued to exist in this structure until the disbandment of 33 Battery in 1961.

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