Morgan Ruig and Evan Shay, both 28, were on a polo trip in Beijing when they heard about the competition.
They successfully applied to play as the Australian team and wore green blazers bearing the national logo.
The men, who do not play professionally, left North Korea without problems after the event.
Australian impostors Will play official golf tournament in North Korea.The two-day tournament brought 85 participants from around the world to North Korea’s only golf course in Pyongyang.
The Australian pair were chaperoned throughout their five-day trip which included a tour of the capital, where they placed a bouquet at a monument to the country’s leaders.
“We were very nervous handing our passports over at the border. There are stories of people not coming home,” Mr Ruig told the Courier-Mail newspaper.