PROBLEM TO BE SOLVED: To provide a transplanter capable of coping with a narrow interval between planting rows and preventing a weight of seedlings for replenishment and a placement base from affecting supply of seedlings on a seedling supply table.SOLUTION: A seedling transplanter includes: a vehicle body 10； right/left travel devices 50 travelling on a field； travel transmission cases 30 supplying driving force to the right/left travel devices 50； a seedling supply device 200 conveying and supplying seedlings； seedling planting tools 310, 320 receiving the seedlings supplied from the seedling supply device 200 and planting the seedlings on a field； and a placement base 800 placing thereon a storage container storing preliminary seedlings supplied to the seedling supply device 200. The right/left transmission cases 30 are mounted on a machine body via a support base 801. A base of a support frame 802 of the placement base 800 is connected to the right/left support base 801. The support frame 802 is across the vehicle body 10.SELECTED DRAWING: Figure 1
