An LED plant cultivation and cold injury prevention system according to an embodiment of the present invention includes: an LED unit that emits light toward a plant; a sensor unit positioned close to the plant to sense the surrounding environment; a water supply unit for supplying water to the plant; a cold injury prevention unit positioned close to the root of the plant to prevent cold injury of the plant; and a control unit to help the growth of the plant by controlling the LED unit, the water supply unit, and the cold injury prevention unit based on the information sensed by the sensor unit.본 발명의 실시예에 따른 LED 식물재배 냉해방지 시스템은, 식물을 향하여 빛을 방출하는 LED부와, 식물에 근접하게 위치하여 주변 환경을 센싱하는 센서부와, 식물에 물을 공급하는 급수부와, 식물의 뿌리에 근접하게 위치하여 식물의 냉해를 방지하는 냉해방지부와, 센서부에서 센싱된 정보를 기초로 LED부, 급수부, 및 냉해방지부를 제어하여 식물의 성장을 돕는 제어부를 포함한다.