PROBLEM TO BE SOLVED: To provide a seedling transplanter capable of simply storing an extended seedling loading table even when an extended seedling loading table is provided on right and left outsides of an ordinary seedling loading table.SOLUTION: A seedling loading table 51 for loading a plurality of seedlings and a seedling planting device 52 are disposed in the rear part of a traveling vehicle body 2, a rotatable extended seedling loading table 51 is provided on the outer end part of the seedling loading table 51, an auxiliary work device 63 for spraying a fertilizer and a chemical is provided on the rear lower part of the seedling loading table 51, and the seedling loading table 51 is provided with turning shafts 66a, 67a for moving the extended seedling loading table 51 between the storing position and the deployment position. In this seedling transplanter, the turning shafts 66a, 67a are disposed at such a position that the extended seedling loading table 51 is movable along such a locus that the extended seedling loading table 51 does not interfere with the auxiliary work device 63 when the extended seedling loading table 51 is turned on the seedling loading table 51 to be stored. When the extended seedling loading table 51 is once moved to the storing position, it does not return to the working position, so that the extended seedling loading table 51 can be prevented from sticking out of transport means such as a truck and coming into contact with the wall of a stockroom and peripheral articles to be broken.
