Currently it provides close artillery support to the 3rd Brigade and is based at Chau Pha Lines, Lavarack Barracks in Townsville, Queensland.

The first use of the number "four" designation was made by a unit in New South Wales in June 1912, but the 4th Field Artillery Brigade was placed into suspended animation at the outbreak of the First World War.

[8] Embarking from Alexandria en route to Marseilles on 14 March 1916, the unit was equipped with British 18-pounder guns and was put into action near Armentieres on 8 April 1916.

[9] The unit underwent a number of reorganisations, including the replacement of a field battery with a howitzer battery (the 19th was replaced by the 104th in May 1916)[8] and a change in designation to "4th Australian Field Artillery Brigade" and re-equipping with various calibres of guns throughout the war, with the unit being withdrawn from action for the last time on 18 October 1918.

Despite these changes, the unit managed to achieve a standard of technical proficiency that would serve the artillery well in the coming war.

Once trained and certified as ready for offensive operations on 19 May 1941, the regiment served in North Africa with the 7th Division's invasion of Syria.

After the end of fighting in that theatre in July 1941, the regiment remained at Jdaide as part of the garrison and blocking force.

After a long series of manoeuvres in Queensland, the batteries of the regiment arrived in New Guinea with their supported brigades from September 1943.

[16] After leave, the 2/4th Fd Regt concentrated in Brisbane and then the Atherton Tablelands[17] in preparation for 7th and 9th Divisions' operations to follow up the retreating Japanese in New Guinea and Borneo.

After the Japanese surrender on 15 August 1945, the majority of the regiment was returned to Chermside, Brisbane, and on 7 February 1946, the 2/4th Fd Regt AIF was disbanded.

After the restructure of the Army's jungle divisions, the 4th Fd Regt RAA was moved to Helidon in July 1943, with orders to deploy to New Guinea received on 11 January 1944.

After the Japanese surrender, the regiment settled into sport and recreation prior to departing Bougainville on 19 December 1945, arriving in Brisbane on Christmas Eve.

[23] As part of the reorganisation of the Army with both National Service and the ill-fated "pentropic division", the requirement for an artillery unit to support the Battle Group in Townsville (based around the 2nd Battalion, the Royal Queensland Regiment) was identified.

On 4 May 1960, the administrative cadre of the new 4th Field Regiment, Royal Australian Artillery (4 Fd Regt RAA) was established at Wacol, Brisbane.

The regiment's area of the barracks was named "Chau Pha Lines" in honour of the action for which Forward Observer Lieutenant N.J. Clark was awarded the Military Cross.

On 18/19 May 1970, following the announcement of withdrawal of Australia troops from Vietnam, the 131 Div Loc Bty detachment ceased operating its two radars.

From October 1970, large-scale troop withdrawals began, beginning with the departure (without replacement) of 8th Battalion, the Royal Australian Regiment.

Significantly, Tropical Cyclone Althea struck Townsville on Christmas Eve 1971, requiring over 100 soldiers to be recalled from leave to assist in the clean up.

[30] With the withdrawal of the British from South East Asia, and the United States from Vietnam in the mid-1970s, Defence policy shifted to self-sufficiency and the Army reverted to a conventional structure.

The regiment, as part of this force, was converted to a light scale organisation, and tasked with maintaining elements ready for deployment at short notice.

Upon 1 RAR's rotation into East Timor post-transition, 107 Fd Bty deployed only their Battery Commander and Observer parties, leaving their gun line in Australia.

[37] On 28 May 2002, during a training exercise at high range, 107 battery had an L119 catastrophically explode, injuring 6 of the soldiers operating the gun.

[41][42] Employment categories were changed in preparation for new equipment including 155mm towed howitzers and battle management system.

The regiment is also equipped with Australian made Bushmaster Protected Mobility Vehicles for use as Command Posts and troop transport.