Imaging control method, imaging device and unmanned aerial vehicle are provided. An imaging control method for an imaging device with a lens includes: acquiring a brightness value of an environment in which an object-to-be-imaged is located; determining, according to the brightness value, an aperture value and a shutter speed for the lens of the imaging device corresponding to the brightness value; and implementing, according to the determined aperture value and the determined shutter speed, an imaging process on the object-to-be-imaged by the imaging device.