Verbal abuse and violence are daily issues for 1 in 3 school staff in the South East.
Teachers Union UNISON says its report also found that 3 in 10 school support workers see pupils pushing, kicking, and throwing things every day.
The Union says - the survey of 900 school workers paints a bleak picture of an under-appreciated workforce facing abuse.
UNISON head of education Mike Short said: “Nobody should face abuse or witness violence at work. Sadly, for a staggering number of school support staff that is their daily reality.
“Tackling bad behaviour in school requires funding and extra staff, but this survey shows the opposite has happened in recent years.
“The generosity and dedication of school support staff are to be applauded. But it is truly shocking that many are putting in extra unpaid hours and struggling to make ends meet. This can’t continue.
“The report identifies thousands of staff who are considering quitting the profession. But support staff are vital to the smooth running of schools and the experiences of pupils. Their pay and working environment should better reflect the invaluable help they provide.
“The government’s decision to reinstate the school support staff negotiating body will finally mean recognition for the vital contribution made by teaching assistants, caterers and technicians. Importantly it should lead to improved pay and conditions, backed up by increased funding for schools.”