The invention discloses a projector. The projector comprises a motor module and a projection module, wherein the projection module comprises a lens, a frame is projected from the lens through a through hole formed in an electronic device housing, the motor module comprises a motor, an output shaft of the motor is meshed with a gear assembly, the gear assembly is meshed with a lens adjusting part, the lens adjusting part drives the lens to rotate so as to adjust the frame projection direction. In addition, the projector further discloses an information processing method and an electronic device.