A six-year-old boy has lost half his ear and is set to undergo further surgeries after being mauled by a dingo on a popular tourist island.

The youngster, named Gus, was fishing on Queensland's K'gari with his grandfather on Saturday about 3pm when the animal pounced on him.

His lacerations were treated at the scene by paramedics and he was then flown to Queensland Children's Hospital in a stable condition.

Gus' mother, who did not wanted to be identified, said the dingo had attacked her son from behind while he was excitedly reeling a fish in.

"My stepdad got the dingo off him and them my son ran and it barrelled him down again and went again," she told 7News.

It took five adults to fight off the dingo, with the attack lasting 45 minutes.

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Gus suffered wounds to the back of his head, back and bottom.

He also had half his ear bitten off.

The six-year-old has undergone a number of surgeries, including plastic surgery, and will need further operations in the future, his mother added.

"At the moment though it's kind of just cleaning it up and getting rid of any germ and lots of antibiotics," she said.

His mum also revealed it was not the first animal to attack her son, as he was bitten by a dog when he was a baby.

The dingo incident has left her son - who has not spoken much since being rushed to hospital - traumatised again.

"He's not said much. He's pretty out of it at the moment," his mother said.

There have been at least four reported dingo attacks on K'gari, formerly Fraser Island, this year so far.

The most recent was in May when a nine-year-old boy was bitten at Yidney Rocks.

Good Samaritans intervened to help the child.

The dingo was also injured during the incident.

Queensland's Department of Environment, Tourism, Science and Innovation (DETSI) at the time said it would increase patrols in the area.

The animals appear to be losing their natural fear of humans as more tourists flock to K'gari, a popular destination for Aussies and overseas travellers.

In July, rangers warned visitors to secure campsites, store foods in Eskies and to clean up their rubbish after finding dingoes having a feast.

"Rangers came across a number of sites recently where the dingoes have gotten into the camping gear and absolutely gorged themselves on food," Dr Linda Behrendorff, a dingo experts, said.

"Dingoes are opportunistic, and they will take a chance to come into a camp if they can smell (food).

"Dingoes don't differentiate between food and rubbish and they can start approaching people for food, which puts dingoes and people at risk."

How to stay safe from dingoes

Tourists to K'gari have been urged to stay away from dingoes at all times.

It includes:

1. Always stay close (within arm's reach) to children and young teenagers

2. Always walk in groups and carry a stick

3. Never feed dingoes (on the spot fines of $2580 applies)

4. Camp in fenced areas where possible

5. Do not run. Running or jogging can trigger a negative dingo interaction

6. Lock up food stores and iceboxes (even on a boat)

7. Never store food or food containers in tents, and

8. Secure all rubbish, fish and bait.

Chilling photo of boy before dingo attack