PROBLEM TO BE SOLVED: To provide a seedling raising pot tray that is conveyed while housing seedling raising pots 51 in which plant seedlings are planted, in which even if shock in loading/unloading the tray or vibration in transporting is added, the seedling raising pot are prevented from being popped out, and seedlings and soil are prevented from being scattered .SOLUTION: There is provided a seedling raising pot tray 1 in which a plurality of recessed parts 10 for housing seedling raising pots are arrayed vertically and horizontally, and an outer peripheral edge 18 of an upper part of the tray forms a substantially square in a top view. Each recessed part 10 has an outer wall 12 which is continued to the outer peripheral edge 18 on an upper end part. At least one of the outer wall 12 has hole parts 13 penetrating the outer wall 12 at a portion closer to the upper end part, and has a tongue piece part 14 which is hung down into the hole parts 13 from a hole part upper side 13a and continued to a hole part lower side 13b in an easily separable manner.
