the present invention is an internal combustion engine using independent plant of the factory to be, more particularly, stably supply the light energy required for the photosynthesis of plants by using an artificial light source with an electric power self-maintenance and operation completely independent is possible without regard to the environment by producing an internal combustion engine as well as the stable supply of electric number and, if not harmful to the plant by the exhaust purification plant in a state where the exhaust gas of an internal combustion engine capable of supplying even the carbon dioxide required for the growth of the plant, the temperature maintained within the factory plant to recover heat from the exhaust gas of an internal combustion engine It relates to a plant using a plant that can be used independently of the internal combustion engine. Independently plant factory with an internal combustion engine according to the present invention, a plant for cultivation and receiving, in the plant is plant electricity equipment, including an artificial light source necessary for the growth of the plant, a drive shaft by using the combustion energy of the fuel rotate, and the internal combustion engine to discharge the exhaust gas containing carbon dioxide to the exhaust pipe The rotary drive shaft of the internal combustion engine is connected to the electricity and the power supply configured to supply jeonryeokreul including a generator to produce electricity The catalyst for purifying exhaust gas discharged to the exhaust pipe of the internal combustion engine, for supplying the cleaned exhaust gas through the catalyst to the plant factory CO 2 , including a supply pipe configured CO 2 and supply Heat exchanger, and a tear benefits including radiator configured to supply the recovered heat from the heat exchanger to the heating plant, plant through the line for recovering the heat from the exhaust gas discharged to the exhaust pipe of the
