The present invention relates to an energy-saving house crop cultivation device and a method for growing house crops by a heating and cooling system, and to provide an indoor environment including the proper temperature and nutrient solution for growing crops in a house where various crops are grown regardless of the season. In addition, by using an underground water tank with energy saving effect, hot and cold water is generated and supplied to control the temperature inside the house, dissolved oxygen is given when hot and cold water is supplied, and energy saving effect is obtained by using an underground water tank. In order to do so, an underground water tank (10) buried in the basement near the house (2) installed for growing crops (3); A submersible pressurization pump 12 is provided to transport the used water filled in the underground water tank 10 to the outside, and is located above the underground water tank 10, and the submersible pressurized pump 12 a water temperature control unit 20 connected to a moving pipe 14 connected to and provided with a cool cooler and a hot water heater to control the temperature of the moving water; an above-ground water tank 30 installed on the ground to store used water adjusted to a temperature required by the water temperature control unit 20; The first supply pipe 31 connected to the above-ground water tank 30 is provided in the house 2 along the longitudinal direction of the house 2, and a plurality of nozzles are disposed on the first supply pipe 31 at regular intervals. A nutrient solution supply tank (40) installed on the ground near the above-ground water tank (30) to spray the temperature-controlled water used in the house (2) and supply nutrients to the crops (3) grown in the house (2) ); The second supply pipe 42 connected to the nutrient solution supply tank 40 is provided parallel to the first supply pipe 31 in the house 2, and a third supply pipe 43 connected to the nutrient solution supply tank 40. is provided in parallel with the second supply pipe 42 at the upper part of the house 2, and a plurality of nozzles are provided on the second supply pipe 42 and the third supply pipe 43 at regular intervals to produce crops in the house 2 (3) to spray the nutrient solution, a plurality of goseol beds 50 provided in the longitudinal direction of the house (2) spaced apart from the ground in the house (2); The old bed 50 is provided with an accommodating groove 52 for cultivating the crop 3, and a hot and cold water pipe 60 connected to the first supply pipe 31 is provided in the accommodating groove 52 to grow the crop 3 ) characterized in that it is made, including being configured to deliver the necessary cold and hot air.
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