PURPOSE: To provide a seedling table capable of avoiding the catch of seedling with a supporting member and the deformation of the seedling table to open the butting part of the seedling table units in spite of the structure to tightly fix the supporting member of a seedling supporting tool to the part where plastic seedling table units of a seedling table are butted with each other.

CONSTITUTION: An attaching base part 17b of a supporting member 17 is extended from the upper wall part 10 of a seedling table unit 7 to the upper wall part 10 of the other seedling table unit 7 in a state to prevent the protrusion of the base part toward a seedling holding plate 1 from a partition wall 3 composed of the partition walls 9 and the upper walls 10 of a pair of adjacent seedling table units 7. A protrusion 20 engaged with the attaching base part 17b is integrally formed on each upper wall part 10. The upper wall parts 10 are connected with each other through the attaching base part 17b to prevent the opening of the upper walls in spite of the structure to tighten the attaching table part 17b to the upper wall part 10 with a fixing bolt 18.