China, who failed to qualify for next year’s World Cup, dominated the young Australia side from the outset and took the lead in the fourth minute through Yu Dabao.
In the 29th minute, Aaron Mooy’s long-range piledriver briefly restored parity, but China came back stronger in the second half, with goals from Sun Ke, Yang Xu and Wu Lei giving them a 4-1 lead.
China tested debutant goalkeeper Mark Birighitti with a host of long-range efforts, but he made some valiant stops to save Australia some dignity before Sun doubled their advantage just before the hour mark.
Yang’s strike in the 86th minute and Wu’s goal a minute later came from defensive lapses, with the scorers slotting the ball past the advancing Birighitti after breaking away.
The Socceroos, who finished the event with a draw and two defeats, responded strongly, getting two consolation goals through Adam Taggart and Mitchell Duke.