To provide an entering/outgoing control system preventing input of control information from being forgotten by making an alarm display when set control schedule information decreases.

This entering/outgoing control system is provided with a closing means 3 for electrically closing a doorway place, an input means 1 for inputting control information of the closing means 3, and a control device 2 connected to the input means 1 and the closing means 3. The control device 2 has a storage means 23 for storing a future control mode of the closing means 2 in relation to calendar information, a judging means 20 outputting that it is the day corresponding to the specified number of days before the last day of a period with the above-mentioned future control mode set, and an output means for outputting alarm information on the basis of a signal from the judging means 20.