Relations between the two of the countries can be traced back during World War II when the Australian Army played a crucial role to liberating Brunei from Japanese occupation in 1945. While the present relations between the two countries were established since 1984 when Australia became one of the first countries to establish diplomatic relations with Brunei. Both countries also has enjoy a warm relationship as before 1959 when Brunei achieved self-government. Now, the relations were mainly focused to defence and security, education, as well as on trade.
From 2012–2013, Brunei was ranked as Australia's 39th largest trading partner with the total bilateral trade between the two countries reached U$1.026 billion. Brunei crude petroleum comprising U$978 million of the total trade. There is also a number of Australian teachers and other professionals work in Brunei while Australia became one of the destination for Bruneian students.
Both countries enjoys a defence relations particularly in military exercises and trainings.
- "Australia-Brunei Relations". Ministry of Foreign Affairs and Trade (Brunei). Retrieved 20 February 2014.
- Jatswan S. Sidhu (22 December 2009). Historical Dictionary of Brunei Darussalam. Scarecrow Press. pp. 29–. ISBN 978-0-8108-7078-9.
- "Sultan of Brunei heading to Australia". The Australian. 29 April 2013. Retrieved 20 February 2014.
- "Australia-Brunei bilateral relations". Department of Foreign Affairs and Trade (Australia). January 2014. Retrieved 20 February 2014.
- Rabiatul Kamit (2 March 2012). "Brunei and Australia fortify defence relations". The Brunei Times. asiaone. Retrieved 20 February 2014.