A passenger control system during a plane flying is disclosed, which is adapted to keep under checking all the passengers, so as to prevent and in case avoid any action such as hijackments, attempts etc. The system includes a plurality of interactive communicating units (9, 10) adapted to communicate reciprocally, of which each first unit (9) is made by an arm-band or collar (11) supported by each passenger and having an individual code to identify the related passenger, and each second unit (10) is made like a remote unit available by the plane personnel and adapted to store the codes of all the passengers and to recognize them. The system is designed in a manner that the emotional conditions of the passengers are detected and, in case of change of such conditions, the plane personnel is informed so as to intervene promptly on the related passenger.