Snake catcher Rolly Burrell caught the eastern brown snake at the woman's home in Adelaide, South Australia.
She had stepped outside her southern suburbs home to collect her shoes and saw a brown tail disappear into a boot.
The species is considered one of the world's most venomous land snakes and is found along the coasts and inland areas of mainland Australia.
"She went outside to get her ugg boots and she saw something shoot in there," Mr Burrell told the BBC.
"She realised it was a snake."
