The Huddersfield Giants winger was accused of biting opposition skipper Robbie Farah on the arm in the 42nd minute of last Saturday's win 29-10 over Lebanon.
The incident was referred by the World Cup match review panel to a judiciary in Sydney on Wednesday afternoon.
McGillvary pleaded not guilty and, alongside coach Wayne Bennett, team manager Jamie Peacock and lawyer Nick Ghaber, put his case across via video link-up from Perth.
Farah did not turn up to give evidence at today's hearing in Sydney or supply any written evidence.
McGillivray described the claim that he bit Farah as "outrageous" and said: "his arm went into my mouth".
The 29-year-old reacted on Twitter by saying: "Well, well, well."
If found guilty, McGillvary could have been banned for up to 12 weeks.