The present invention relates to a plant cultivating device having a multistage structure, and more specifically, to a plant cultivating device having a multistage structure which is capable of adjusting a supply amount of water dropped to a plant growing case according to compactness of net structure and size of embossing, and which is formed in a multistage form such that the plant cultivating device is easily managed. A plant cultivating device having a multistage structure according to the present invention comprises: a first stage frame which becomes a base plate a second stage frame which is formed to a predetermined height from a top side of the first stage frame along the edge of a circumference of the second stage frame that is indented as deep as a predetermined depth from the front side of the second stage frame, and of which front and top sides are opened and a third stage frame including a plant growing case which is inserted into an inner side of the second stage frame, and of which a top side is opened such that the top side of the plant growing case is taken out by sliding along a top side of the first stage frame, plural pillar parts which are formed to a predetermined height on the top side of the second stage frame, and a watering part which is for supplying water to the plant growing case. As described above, a plant cultivating device having a multistage structure according to the present invention has an effect of providing the plant growing case that is capable of being drawn out as a drawer type plant growing case. Further, a plant cultivating device having a multistage structure according to the present invention has an effect of providing the watering part which is formed on a top part of the plant growing case to supply water to the plant growing case. Further, a plant cultivating device having a multistage structure according to the present invention has an effect of providing fiber material for adjusting the supply amount of water droppe
