A flight route control method of an unmanned aerial vehicle includes: accepting, by a touch panel, an input of a departure point and a waypoint that the unmanned aerial vehicle will pass; receiving a predetermined time, indicating an end of a time period in which the unmanned aerial vehicle is permitted to fly; generating a flight route passing through the departure point and the waypoint; determining whether or not an arrival time to the waypoint is later than the predetermined time; not accepting the waypoint for the generated flight route when the arrival time is later than the predetermined time; accepting the waypoint for the generated flight route when the arrival time is not later than the predetermined time; and transmitting a control command to the unmanned aerial vehicle, the control command controlling the unmanned aerial vehicle to fly according to the generated flight route.