The present invention relates to an optical outer casing, a shooting device using the same and an unmanned aerial vehicle. The optical outer casing 100 comprises a decorative member 10 used for connecting the unmanned aerial vehicle with an imaging module 210; a lens assembly 30 arranged on the decorative member 10 and capable of covering the imaging module 210 of the unmanned aerial vehicle, so that the optical outer casing wraps the imaging module 210 to protect the imaging module 210.