PURPOSE: A liquid carbon dioxide storage tank module is provided to prevent additional costs due to power and fuel consumption by supplying carbon dioxide discharged from boil-off gas in a storage tank to an artificial plant cultivation facility. CONSTITUTION: A liquid carbon dioxide storage tank is composed of a storage tank(100) and a control unit(200). The storage tank maintains a sealing state at a higher pressure than the injection pressure of liquid carbon dioxide. The control unit maintains the internal pressure of the storage tank at a saturation pressure of the liquid carbon dioxide corresponding to the injection temperature of the liquid carbon dioxide while discharging boil-off gas generated from the liquid carbon dioxide in the storage tank. The boil-off gas of the carbon dioxide discharged from the storage tank is supplied to an artificial plant cultivation facility(300). The control unit controls the amount of the carbon dioxide supplied to the artificial plant cultivation facility.
