A plant-growing device with light emitting diode comprises a darkroom, a generator, a gas collecting device and a water supplying device. The darkroom comprises an accommodating space and a plurality of light emitting diodes disposed in the accommodating space for producing a light beam irradiating the accommodating space. The generator is disposed outside the darkroom. The generator is configured to receive sunlight from the atmospheric environment and convert it into an electric energy and provide the electric energy for the light emitting diodes. The gas collecting device connected between the accommodating space and the atmospheric environment is configured to transfer carbon dioxide from the atmospheric environment into the accommodating space and discharge oxygen from the accommodating space into the atmospheric environment. The water supplying device connected to the darkroom is configured to transport water outside the darkroom into the accommodating space.一種發光二極體之植物生產裝置,包含一暗室、一發電裝置、一集氣裝置及一給水裝置,暗室內具有一可供植物生長的容置空間,容置空間內並設置有複數個發光二極體。發電裝置配置在暗室外之一大氣環境中,並且將一太陽光轉換為一電能後,供應至複數個發光二極體,以產生一光線照射於植物。集氣裝置係將大氣環境中的二氧化碳氣體輸入至暗室內,給水裝置則是從暗室外輸送一水體至容置空間內,使植物在容置空間內進行光合作用而產生氧氣,並且經由集氣裝置將此氧氣排放至大氣環境中。
