WangarattaHelen Haines lost both legs after being struck twice.
Attacks on politicians are rare in Australia, where lawmakers move about with little security.
Police allege Brendan Nugent, 43, struck her twice outside her electoral office Monday, and bystanders restrained him.
Police call the attack targeted but isolated, and say they found no past contact between Haines and the accused.
Nugent, charged with intentionally causing serious injury, returns to court on 4 February.
Sources: Daily Maverick