This invention relates to an LED light quality adjustment device for a plant factory and a method thereof and more particularly to a device for simulating natural light irradiation by using circuit control, mainly comprising at least one illumination module, at least one optical component corresponding to the illumination module, a control module in information communication with the illumination module, and a power supply module providing power to the illumination module and the control module. With the configuration above, the illumination module, in conjunction with the optical component, may be adjusted into concentrated irradiation or uniform dispersion according to the need. In addition, through the setting of the control module, the light irradiation intensity, light irradiation distance and light irradiation time can be adjusted so as to simulate natural sunshine.本發明為有關一種植物工廠之LED光質調整裝置及其方法,係指一種運用電路控制已模擬自然光照射之裝置,其主要包含至少一發光模組、至少一與發光模組對應配合之光學組件、一與發光模組資訊連接之控制模組及一供發光模組及控制模組作動所需電力之電源供應模組,透過上述之結構,發光模組透過光學組件之配合,依據需求將調整成集中照射或均勻分散,並搭配控制模組之設定,對光照射強度、光照射距離及光照射時間等進行調整,藉此達成模擬自然日照之優點。1‧‧‧發光模組11‧‧‧光感應元件2‧‧‧光學組件3‧‧‧控制模組31‧‧‧可邏輯控制微處理器32‧‧‧控制基板33‧‧‧連接埠4‧‧‧電源供應模組5‧‧‧載體
