Mr Morrison, from Hornsby, has also been charged with six counts of wounding with intent to cause grievous bodily harm and affray.
On Friday, he was refused bail and remanded in custody, to appear again at Hornsby Local Court on March 11.
It is understood Mr Morrison had allegedly been ejected from suburban wine bar Kipling’s Garage Bar for being too intoxicated, when he passed a large group of teenagers in a park on Gilroy Rd, Turramurra.
An altercation then broke out between Mr Morrison and some of the teenagers, before the 34-year-old allegedly pulled out a knife and stabbed six of the teens.
A 16-year-old girl who was stabbed was taken to hospital with a collapsed lung and underwent surgery.
Four other teenagers suffered non life-threatening stab injuries in the fight, while a 17-year-old boy underwent surgery for stab wounds to his throat, chest and abdomen.
Mr Morrison was also taken to hospital after the incident with injuries to his head and upper body.
The 16-year-old girl was discharged from hospital on Thursday.