Scott Gledhill, from Stafford, said his son Emerson was trying to get on a slide in Lanham Park behind Grange Library on Thursday when he was attacked.
There were two dogs off the leash nearby and one went at Emerson and bit him twice, on the face, Mr Emerson said.
"This is what happens when dogs and playgrounds interact,’’ Mr Emerson said.
"There's a duty of care on councils. I think they have to build fences (around playgrounds).’’
Emerson, who was with his mother Rachel Dear, from the Grange, when the attack happened, was rushed to a local GP who did not put stitches in because he said it was likely to leave permanent scarring.
Emerson could still be scarred for life on his lip and under his eye.
Mr Gledhill also called for the dog involved to be declared dangerous.
A Brisbane City Council spokesman said council bylaws state dogs in parks must be on a leash at all times, except in designated dog parks.
Families and Community Services Chairman Geraldine Knapp said the incident was unfortunate and was a "frank reminder as to why people should obey laws requiring dogs to remain on a lead unless otherwise signed".
"Council has had strict laws requiring dogs to remain on a leash in public places for over a decade and we will be investigating the matter fully," Cr Knapp said.
(Courier Mail - June 10, 2011)
