In Mandurah Magistrates Court on October 8, Frank Martin Mills pleaded guilty to driving a motor vehicle while having a blood alcohol content above 0.08g.
The court was told Mills was drinking alcohol at his daughter’s house in Wannanup on September 12.
When Mills attempted to drive, an argument broke out with his daughter, who tried to take away his car keys.
Mills eventually drove and the car hit his daughter while reversing, with the impact throwing her onto a wall.
Emergency crews and police were called to the Paperbark Way home at about 5.55pm.
The 35-year-old woman suffered a broken wrist, lacerations and shoulder injuries.
Mills had a blood alcohol content of 0.13g.
Duty lawyer Sarah King said Mills was suffering from emotional duress due to a family matter.
Mills was also fined $750 plus court costs.