The present invention relates to a hydroponic culture device and a control method thereof. The present invention comprises: one or more hydroponic culture beds (160) arranged in a plurality of layers at regular intervals in a body (110) and configured to circulate a culture medium in a hydroponic culture device (100); one or more hydroponic culture panels (150) assembled and installed on upper ends of the hydroponic culture beds (160), respectively, configured to prevent external foreign matter from entering, and including a plurality of seedling holes (151) formed at regular intervals; LED lighting devices (140) arranged in a plurality of layers at regular intervals in the body (110); a nutrient solution control unit (130) provided on a bottom surface of the body (110) and including a temperature adjusting unit (120) with a cooling device, a nutrient solution tank, and a driving pump; and a hydroponic culture device control unit (100a) in which the temperature adjusting unit (120) and the nutrient solution control unit (130) are connected to a control unit (101), and a web/app remotely monitor and control states of temperature, humidity, light, water, and nutrients based on a cloud server so as to provide the optimal cultivation environment. Accordingly, an object of the present invention is to provide an optimal solution required for crop cultivation environment of crops, such that the quality and reliability of the hydroponic culture device are remarkably improved, and thus, it is possible to present a good image by satisfying various desires (needs) of consumers who are users.본 발명은 수경 재배기 및 그 제어방법에 관한 것이다.본 발명은 이를 위해 보디(110)의 내부에 일정 간격으로 복수개의 층으로 구비되며, 수경재배기(100)의 내부에 배양액이 계속 순환되도록 한 적어도 하나 이상의 수경 재배 베드(160); 수경 재배 베드(160)의 상단에 각각 조립 설치되며, 외부 이물질의 투입을 방지함과 아울러 일정 간격으로 복수개의 모종홀(151)이 형성된 적어도 하나 이상의 수경재배용 패널(150); 보디(110)의 내부에 일정 간격으로 복수개의 층으로 구비되는 LED조명(140); 보디(110)의 저면에 구비되며 냉각장치가 구비된 온도조절부(120)와, 양액탱크와 구동펌프가 구비된 양액콘트롤부(130); 및 제어부(101)에 온도조절부(120)와 양액콘트롤부(13