PURPOSE: To positively catch a thief on the run by directly traveling, an elevator whose door is in opened state on the floor where a theft alarm detecting device operates, to a specific floor after the elevator door is closed and controlling a door control switch for the specific floor by a switch installed in a guard station or at a getting-on field on the specific floor.

CONSTITUTION: When an all-time opened contact point 4a for alarming theft on the fourth floor is operated at a guard station on the second floor, if an elevator door is opened on the fourth floor, an alarm device 15 operates, and the compulsory return of an elevator from the fourth floor to the second floor is informed. After the lapse of an interference time, the door is closed, and all the registered call for a cage is deleted at all, and answer is not generated for the call at a getting-on field. At this time, an all-time closed contact point 14b is energized, and elevator passage is opened, and the cage starts the DOWN traveling. When the cage travels to the guard station floor, the all-time opened contact point 12a for detecting the cage position on the guard station floor is closed, and the elevator stops on the guard floor. At this time, the door is controlled only by the operation of a door opening instruction switch.