The present invention relates to a seedling tray. The seedling tray according to the present invention comprises: a tray body a plurality of main irrigation channels formed in a concave shape so that a drop hose is installed on an upper surface of the tray body a plurality of ports formed on both sides of the main irrigation channels and formed so as to cross each other on one side and the other side of the main irrigation channels a water supply unit formed in the main irrigation channels and formed to be inclined toward each port side and a mounting unit having a mounting groove corresponding to an outer circumferential surface of mounting rods, formed on the lower side of at least four ports among a plurality of ports so as to be mounted on at least two mounting rods. The plurality of ports are provided with a cut section that is cut toward the main irrigation channels so as to be connected to the water supply unit. The side on the water supply unit which is connected to the cut section is formed on the lower side than the opposite side.COPYRIGHT KIPO 2017