A door lock system is provided to allow only an authenticated administrator to disassemble the door lock system since the screw coupling structure is not used in the device. A door lock system includes a base plate mounted to door(10). A system body is combined in the base plate to be separable so that the outer edge of the system body surrounds the base plate while having an authentication process module. A front side of the base plate is faced to the system body and at least one binding unit(1) inside of the system binds the system body to the base plate. A controller controls the move operation of a stopper based on the authentication process through the authentication process module.
