A refrigerator includes a cabinet having a storage compartment provided therein, a main door pivotably mounted at one side of the cabinet for opening and closing the storage compartment, an auxiliary storage compartment coupled to a rear of the main door, a sub door pivotably mounted at one side of the main door for opening and closing the auxiliary storage compartment, a locking device for selectively coupling the main door and the sub door to each other, a handle pivotably mounted at one side of the sub door for pivoting and opening the main door when pulled and releasing the locking device when pushed, and a lock control device mounted in the sub door for lock control with operation of the handle to release the locking device.