Anthony Robert Pereira, 54, was arrested on March 24 in Auburn, accused of sending menacing emails to the two Greens politicians from October 2022 to March this year.
"(Pereira) did make a threat, to wit, to kill and/or commit an act of violence, to MP Adam Bandt and Senator Sarah Hanson-Young," court documents say.
He has been charged with one count of threatening a commonwealth official and one count of using a carriage service to menace, harass or offend.
The respective maximum penalties for each offence are nine years and five years in jail.
Pereira spoke to the Australian Federal Police on February 28 this year and allegedly agreed not to make any further threats.
On March 24, however, the AFP received reports of further alleged threats of violence, subsequently arresting and charging the 54-year-old at his Auburn home.
His mobile phone and notebook were seized.
He is on remand and will next come before Burwood Local Court on April 26.
A spokesperson for Mr Bandt declined to answer questions about the contents of the emails or their emotional affect.
"As the matter is before the courts, we will not be making comment at this time," they said.
Senator Hanson-Young has not yet responded to a request for comment.
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