Transplanting machine

A transplanter (3) is provided with: a planting device (39) for planting seedlings (N) into a field; a seedling supply device (38) for supplying seedlings to the planting device; and a seedling carrying table (190) for carrying a seedling tray (189), wherein the seedling tray (189) accommodates the seedlings supplied to the seedling supply device. A plurality of accommodating recesses (199a) capable of individually accommodating seedlings are formed on the upper surface of the seedling tray in parallel vertically and horizontally, and grooves (199b) formed between adjacent accommodating recesses and extending in the parallel direction are formed on the lower surface of the seedling tray. The seedling carrying table is provided with a carrying part (190a) for carrying the seedling tray; and a guide part (190b) for guiding the movement of the seedling tray on the carrying part. The guide portion is provided so as to protrude upward than the placement portion, and enters the groove portion and extends along the