ELECTRONIC PARKING BRAKE SYSTEM AND CONTROL METHOD THEREOF

An electronic parking brake system including: an electronic parking brake (EPB) including a piston provided to press a pair of brake pads disposed on opposite sides of a brake disk rotating together with a wheel of a vehicle, a nut member provided to press the piston, a spindle member provided to move the nut member, and an electric motor provided to rotate the spindle member, and a controller electrically connected to the electric motor, wherein the controller identifies whether a requested parking operation is an initial parking operation, estimates a motor temperature depending on a voltage drop amount of the electric motor in the case of not being the initial parking operation, estimates a clamping force required for parking depending on the motor temperature, and ends the parking operation when the clamping force reaches a target clamping force.