PROBLEM TO BE SOLVED: To carry out power transmission to an auxiliary implement without changing the positions of members such as a seedling platform by mounting the auxiliary implement on the upper side of a planting mechanism and installing an auxiliary power transmission mechanism to the auxiliary implement. SOLUTION: This transplanter comprises the auxiliary power transmission mechanism 20 formed with a rear extended part 20a for taking out the power from an end of a planting transmission shaft 11 and transmitting the taken out power along a planter case 6 to the rear when viewed from the side and an upper extended part 20b for transmitting the power transmitted to the rear end of the rear extended part 20a upward toward a chemical hopper 14 when the chemical hopper 14 which is the auxiliary implement is mounted on the upper side of planting claws 9 and the auxiliary power transmission mechanism 20 for transmitting the power to the chemical hopper 14 is installed.
