This invention relates to a method and a device for enhancing photosynthesis of photosynthetic bacteria in an artificial cultivation pond. The method is to dispense at least one kind of photosynthetic bacteria in the dark mud layer of a partial area of the artificial cultivation pond bottom and use a light guide device to guide light energy to the dark mud layer of the partial area therein the photosynthetic bacteria are dispensed so as to supply light energy to the dispensed photosynthetic bacteria to promote its photosynthesis and reproduction. The light guide part of the device has a light guide body and a light-scattering head. The light-scattering head is equipped at the bottom end of the light guide body, and the surrounding of the light guide body has an air layer structure. The air layer structure encapsulates the light guide body so.一種人工養殖池光合細菌光合作用促進方法及裝置,其方法是在人工養殖池底部的局部區域的黑泥層中施放至少一種光合細菌,然後利用光合作用促進裝置將日光能導引到施放光合細菌的局部區域的黑泥層中,對施放的光合細菌供應日光能,以促進其光合作用和繁殖;其裝置的導光部具有一導光體和光線散射頭裝置,該光線散射頭裝置設置在導光體的底端,導光體周圍具有一空氣層結構,空氣層結構將該導光體包覆,使導光體與周圍水體隔離,空氣層結構具有空氣間隙,空氣間隙充入乾燥空氣、形成一包覆導光體的空氣層。
