COOLING CONTROL SYSTEM AND CONTROL METHOD OF FUEL CELL

A cooling control system includes: a fuel cell stack formed with a cooling flow path in which hydrogen and oxygen are received and reacted, respectively, and coolant flows between separators; a coolant circulation line connected with the cooling flow path of the fuel cell stack, and having the coolant flowing therein; a cooling pump connected to the coolant circulation line to circulate the coolant to cool the fuel cell stack; a heat generation amount estimator for estimating the heat generation amount of the fuel cell stack; a coolant estimator for estimating an amount of the coolant to cool the fuel cell stack based on the heat generation amount of the fuel cell stack; and a driving controller for controlling the operation of the cooling pump based on the estimated amount of the coolant.