A Queensland dingo advocacy group has warned culling the native dogs is not the answer after one dragged a toddler by the neck from a campervan in the third attack this year.

The 14-month-old boy underwent surgery on Friday afternoon after being flown to the Queensland Children's Hospital with a fractured skull and multiple head and scalp puncture wounds.

Dingoes in Eurong on Fraser Island have no fear of people like others in Queensland because they are raised among them.

The boy's family from Brisbane were camping on the island's south-west on Thursday night when a dingo entered their campervan and dragged him into the bush.

"The child's parents were woken by their son's cries, which were becoming more distant," paramedic Ben du Toit said.