Peter Gardner was arrested in the southern city of Guangzhou last November allegedly carrying over 30kg of the drug in his luggage.
Gardner had been duped into being a mule for a drugs syndicate, his lawyer said, according to a live feed on the website of Guangzhou Intermediate People's Court.
The 25-year-old, who is reported to have lived in Australia for most of his life, had offered to "help police capture...The criminal gang" involved, the attorney said.
The proceedings were completed today, but it was not clear when the verdict and sentence would be handed down. More than 99.9 per cent of defendants in Chinese criminal courts are found guilty.
The trial comes a week after two Australian men were among eight drug convicts -- seven of them foreign -- executed in Indonesia, prompting Canberra to recall its ambassador from Jakarta.
Andrew Chan, 31, and Myuran Sukumaran, 34, went before a firing squad despite pleas for mercy from Australia.
A Japanese man was put to death by China for drugs offences last year, according to Tokyo's diplomats and media reports.
Four other Japanese were executed in China in 2010 for carrying illegal drugs.
China also put to death a Filipina drug trafficker in 2013, the Philippine foreign department said, ignoring Manila's request to spare her life.
