A 48-year-old woman used a pram to barricade herself into a room with the baby after a 41-year-old man started verbally abusing her, police said.
The man then forced the door open before allegedly pouring petrol on the one-year-old.
When the woman went to wash the baby’s face, the man allegedly hit her over the back of the head with a glass.
She then fled with the baby and called police.
He was charged with three counts of assault, destroy or damage property and stalk/intimidate intend fear etc physical harm.
He was refused bail and will appear in Wollongong Local Court today.
The baby was treated by paramedics but did not require hospital treatment.