Heather-Ann Higgins blew the record blood alcohol reading when she crashed her car on Stumpy Gully Road at Moorooduc, on the Mornington Peninsula, on February 15 this year.
The 49-year-old has been jailed for half a year after pleading guilty to reckless conduct endangering life and driving while exceeding the blood alcohol limit, the Herald Sun reports.
She also lost her licence for five years.
Higgins blew .462 - believed to be an Australian record reading for a female driver and a record nine times over the legal blood-alcohol limit.
Higgins told police she drank four cans of a vodka-based mixed drink shortly before she hit a tree and rolled her car on a road in Moorooduc, on Mornington Peninsula, on February 15.
The force of the impact was such that her hat ended up in a tree at least 6m off the ground.
Higgins' blood-alcohol level was tested after a sample was taken while she was treated at the Frankston Hospital.
''Every day people from all walks of life come before this court charged with drink driving offences,'' News.com.au quoted Magistrate Ross Betts, as saying.
''Unfortunately, far too many of them appear to consider this an innocuous and minor offence that caused no real harm to others," Betts added.