The Chinese-Australian writer arrived in China on 19 January but has since disappeared.
Chinese-Australian writer Yang Hengjun is feared missing in China after he arrived on January 19.
The Australian Department of Foreign Affairs and Trade confirmed they were looking into the disappearance of a citizen who has been reported missing.
DFAT said it is: "seeking information about an Australian citizen who has been reported missing in China. Owing to our privacy obligations we will not provide further comment."
This is not the first time Mr Yang has disappeared in China. In 2011, the scholar was unreachable for several days, which he said was a "misunderstanding".
Mr Yang is a novelist, independent scholar and blogger whose work is featured on major Chinese current affairs portals.
Concerns for Mr Yang follow accusations the Chinese government detained three Canadians amid a diplomatic spat between Beijing and Ottawa.
The recent detentions of a Canadian former diplomat and a Canadian entrepreneur have raised suspicions that Beijing is holding them in retaliation for Huawei chief financial officer Meng Wanzhou's December 1 arrest, though no link has officially been made between the cases.
China accused the detainees - former Canadian diplomat Michael Kovrig and China-based business consultant Michael Spavor - of activities "that endanger China's national security".