A Senate committee is examining the Marriage Equality Amendment Bill 2010, proposed by the Greens Senator Sarah Hanson-Young and is due to report to parliament on June 6.
AME's national convener Alex Greenwich said at least 45,000 people had made submissions to the inquiry supporting same sex marriage.
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The submissions were made via AME's website and that of political group GetUp with thousands more submissions, both in favour and against same sex marriage, made directly to the inquiry.
A summary on the Parliament of Australia's website shows that as of March 26, 54 per cent of those who had made submissions agreed the law should be changed to allow same sex marriage.
Forty-five per cent disagreed and one per cent were undecided.
