Disclosed are a water level control module and a device for water culture including the same. An exemplary embodiment of the present invention provides a water level control module for controlling a height of the liquid stored in a liquid storage container, the water level control module, comprising: a pipe portion equipped with a plurality of first discharge balls, which are connected to an outlet of the container to be extended upwardly and are displaced at a distanced interval from each other in a direction of gravity； and an optional open portion which is connected to the pipe portion and formed to open a part or the whole of the plurality of first discharge balls, thereby selecting a first discharge ball opened undermost out of the plurality of first discharge balls. Another exemplary embodiment of the present invention provides a device for water culture, comprising: a main frame； a nutrient solution storage container connected to the main frame； a water culture container connected to the main frame and capable of having a hydroponic plant port connected thereto； a light source for irradiating light onto the upper surface of the water culture container； a nutrient solution circulating portion for circulating the nutrient solution stored in the nutrient solution storage container into the water culture container； and a water level control module for controlling a height of the nutrient solution stored in the water culture container. According to exemplary embodiments of the present invention, as the roots of a plant cultivated in the water culture container becomes longer with an elapse of a cultivation period, a height of nutrient solution stored in the water culture container can be lowered down in stages, thereby reducing the amount of nutrient solution to be circulated in the water culture container as well as the power consumption required accordingly.수위조절 모듈 및 이를 포함하는 수경재배장치가 개시된다. 본 발명의 일 측면에 따르면, 액체 저장 용기에 저장된 액체의 높이를 조절할 수 있는 수위조절 모듈에 있어서, 상기 용기의 배출구에
