And staff given responsibilities in this area get no training in six out of 10 schools, the study says.
Nigel Hirst, chairman of Haden Freeman Risk Services who commissioned the survey, said he found it staggering that schools paid such scant regard to safety issues.
The Cheshire firm, which deals mostly with the chemical industry, commissioned the survey from Hull University.
Researchers found that health and safety documents were "awkward" and "almost impossible to implement in everyday situations in a school environment".
The survey also found there was also little knowledge of personal liability with nearly 40 per cent of schools unaware that governors and heads could be held personally liable for accidents.