The Olyroos have continued on their path to the Tokyo 2020 Olympics with a 6-0 win over Taiwan in Cambodia.

Fresh off a 6-0 win over Cambodia on Friday night, the Graham Arnold-coached Olyroos were again too strong for their opponents on Sunday.

Western Sydney's Abraham Majok scored an early brace before Melbourne Victory's Thomas Deng increased the margin before half-time.

Tass Mourdoukoutas and a Pierce Waring double rounded out the result.

In the other pool match, South Korea defeated Cambodia 6-1 to sit top of the group on goal difference.

The results set up a Tuesday night showdown between Australia's under-23s and the South Koreans for top spot in the group.

Only the winners of the group are assured of progression to January's AFC Under-23 Championship in Thailand -- the final 16-team qualifying tournament for the Olympics from which only three teams will advance to Tokyo 2020.

The best four second-place teams will also progress to the AFC U23 Championship while the fifth-best second-placed team from the 11 groups will also qualify should Thailand -- who have qualified automatically for the tournament as hosts -- finish as either Group K winners or runners-up.

Arnold has called up the best players available to him -- to the chagrin of some A-League coaches -- as he bids to qualify Australia for the Olympics for the first time since Beijing in 2008.