To provide an entrance-exit control system having a controller capable of effectively utilizing an electric-lock driving section.

In the entrance-exit control system with a door (an entrance-exit control gate) 3, an electric lock 3 installed to the door 30, a plurality of magnetic card readers (personal discriminators) 2 and 11 discriminating the personal information of a person intending to pass through the door 30 and the controller 10 being connected to a plurality of the magnetic card readers 2 and 11 and controlling the electric lock 3, the controller 10 has only the electric-lock driving section K(2, 11) connected to the electric lock 3 and a decision section 20" generating a signal driving the electric lock 3 in the electric-lock driving section K(2, 11) and opening the door 30 when whether or not personal information discriminated by either of a plurality of the magnetic card readers 2 and 11 is the information of a person, to which the passage of the door 30 is permitted, is decided and the information is the information of the person, to which passage is permitted.