A rice planting machine 1 comprising a planting unit 10 in a rear section of the machine and having a cabin 20 housing a driver's seat 21, arranged in a front section of the machine. A preliminary seedling rack 30 for the placement of preliminary seedlings is arranged between the cabin 20 and the planting unit 10. As a result, a space in which seedling mats 12 stored in the preliminary seedling rack 30 are grafted to a seedling placement stand 13 can be arranged independently from the cabin 20 (driver's seat 21). Accordingly, a larger space for grafting work can be taken, smooth grafting work can be achieved, mud etc., that adheres to the seedling mats 12 is prevented from entering inside the cabin 20, and the driving space can be kept clean.
