The utility model provides a large -scale intermediate frequency induction coil's high -efficient forced air cooling and water cooling plant, includes: a box, setting up at the array fan at front box body top, setting up in inside several water droplet filter screen, spray cooling pipe, evaporation formula cooler group, the air inlet cooled partition wind channel of front box body, wherein, the spray cooling pipe leads to pipe and coolant tank, spray pump intercommunication, evaporation formula cooler group leads to pipe and coolant tank, cooling water pump intercommunication, and be provided with temperature sensor on the water pipe, the front end in air inlet cooled partition wind channel is provided with air -inlet grille, is provided with level sensor in the coolant tank, be provided with the water supply case on the back box, and temperature sensor, level sensor, cooling water pump, spray pump, array fan link to each other through cable and control box respectively, feed back cooling water temperature, water level state respectively for the control box by temperature sensor and level sensor. The utility model discloses cooling water temperature has been reduced effectively, operating expenses input is practiced thrift in the security that has improved construction equipment.