The invention discloses a
sunlight distribution system for three-dimensional plantation. On the basis of the intelligentization of a
greenhouse, a temperature regulation function and a
moisture regulation function are both more perfect, but a traditional
daylighting way has a low use ratio on
solar energy. A mechanical device of the
sunlight distribution system is used for driving a
solar energy receiving plate; a photoelectric detection device is fixedly arranged on the
solar energy receiving plate and is connected with a central processor via a detection circuit; a plurality of
optical fiber mounting plates are respectively fixedly arranged on the bottom of a
clapboard of a plantation frame; the bottom of each
optical fiber mounting plate is fixed with a diffuser; each
optical fiber bundle is connected with one optical
fiber mounting plate and comprises a plurality of optical fibers, wherein the output end of each optical
fiber is fixedly arranged in an optical
fiber hole in the corresponding optical fiber mounting plate and aims at the corresponding diffuser. The
sunlight distribution system is automatically tracked by a photoelectric method, a
Fresnel lens group is adopted for condensation, and after the light is condensed, the light is conducted via
light guide fibers and is successively input into the diffuser. After the light is scattered, plants are illuminated, and the sunlight distribution
system has an adjustable function of automatically tracking sunlight and a spectral waveband.