He said 20 "serious incidents" had been recorded since 2008, nine of which were for people being ticketed.
He said the five wardens - three female and two males - had radio telephone contact with headquarters and with each other.
"Wardens can also make [radio telephone] contact with our four City Safe Guardians if help is required. Rotorua retailers are very supportive of our wardens who know they can seek refuge in retail stores if their safety is at risk."
Rotorua police prevention manager Inspector Stu Nightingale said police took a "dim view" of people abusing wardens.
"The warden enforcement team have an important job to do. If it wasn't for their visibility and their work we would have a number of issues in the central business district."
Whakatane District Council has recently provided GoPro cameras to parking wardens to record disputes.
The council's public affairs manager Ross Boreham said the cameras worked successfully.
"It was initially a trial but we have been using it for some months now. I think the message from our warden staff is that they have reduced the number of incidents, going from one per day to one per month, where wardens are feeling threatened."
Mr Horn said the possibility of Rotorua wardens wearing GoPro cameras could be considered once information from other council trials was available.