The utility model relates to the field of amusement equipment and relates to an indoor flight system, which consists of a spherical screen video, a traveling crane, a helicopter shell and a miniature fireworks, wherein a circular rail is spanned on an outrigger of a spherical screen video cinema; the traveling crane is spanned on the rail and lifts the helicopter shell; the left and the right of the shell are provided with miniature firework launching devices; a spherical screen video system and a control mainframe are arranged inside the cinema; the control mainframe controls the playing of video; an automatic and manual control panels are arranged on a helicopter; and the helicopter is supplied with power through a cable and driven by a motor, and controls motion of a large propeller and a small propeller. The indoor flight system can simulate the flight effect, is suitable for flight of adults and children, is not limited by time, weather and meteorological phenomena, can be used in all weathers, and not only is safe and reliable but also can make people experience the joy of flight.