The 21st Annual Farm and Road Safety Expo run by the Rotary Club of Rochester will be held on August 20.
More than 600 mainly primary school students are expected to attend with their teachers, carers and supervising parents.
The wider community has also been invited.
There will be 26 exhibitors attending, including milk processor Fonterra, a range of large farm machinery and exhibitors providing safety tips when working around horses.
Entry to the expo is free and there is a free sausage sizzle for all who attend.
■The expo will be held on Tuesday, August 20, at the Rochester Recreation Reserve, between 10am and 2pm.