Last week student leaders at the university were told they were permanently excluded from their studies.
According to Radio New Zealand Polye said the reasons the university council gave were "shallow and amounted to an abuse of its powers" and that the termination was not an appropriate way to restore peace and order at the campus.
He said the university leaders had stood up for everybody to protect state institutions, democracy and rule of law.
The university bans related to several weeks of unrest that peaked in a confrontation between protesters and police at the UPNG Waigani campus in June.
Student protestors wanted PNG Prime Minister Peter O'Neill to step aside and face corruption allegations.
During the June confrontation police used teargas and rifles on about 1000 people attempting to march on parliament from the campus.
According to the police 23 people were injured.
Port Moresby General Hospital accident and emergency ward head Dr Sam Yokopia said five of those injured were in critical condition.