A plant cultivating apparatus includes a body that defines a cultivation chamber, a cultivation bed disposed on the cultivation chamber and configured to move relative to the body, a nutrient storage configured to store nutrient solution, a pipe configured to supply the nutrient solution to the cultivation bed, a bed checker configured to detect movement of the cultivation bed, a level checker configured to detect a level of nutrient solution in the cultivation bed, and a controller configured to receive a signal from the bed checker and the level checker and to adjust the nutrient solution supplied to the cultivation bed. The cultivation bed includes a signal connector that is disposed on one surface of the cultivation bed corresponding to the bed checker and the level checker and that is selectively connected to the bed checker and the level checker according to whether to move the cultivation bed.