A method for cooling the engine for the vehicle applying the turbocharger may include comparing an average fuel consumption amount that determines, by a control unit, for controlling the operation of the engine and the circulation of the coolant, whether an average fuel consumption amount consumed in the engine immediately before the start-off of the engine is greater than a predetermined after-start-up cooling entrance average fuel consumption amount when the vehicle is started-off after a high load operation, and maximally cooling that controls, by the control unit, so that the coolant cooled in a radiator is circulated into the engine and the turbocharger by maximally opening a thermostat for controlling, and operating a water pump, when the average fuel consumption amount consumed in the engine immediately before a start-off of the engine is greater than the predetermined after-start-up cooling entrance average fuel consumption amount in the comparing the average fuel consumption amount.