The present disclosure relates to a door lock device, and more specifically, to a backset adjustable door zoom up latch capable of adjusting a backset distance according to a variety of backset standards of the door, and a digital door lock device having the same. Accordingly, the backset adjustable locking device according to the present disclosure includes a latch, a holder inserted into the latch, an elastic member installed between the latch and the holder, and a zoom guide inserted into the latch and fastened with the holder to fix the latch to the holder.