PROBLEM TO BE SOLVED: To provide a seedling transplanter, in which, when an extended seedling mount table is connected to a seedling mount table with a lock bolt, the lock bolt does not interfere a fertilization hose.SOLUTION: A travel vehicle body comprises a seedling planting part and a fertilization device. The seedling planting part comprises a seedling mount table 51 for mounting seedlings, and a seedling feeding belt 51b for moving the seedlings mounted on the seedling mount table 51 downward. A fertilization hose 62 for guiding a fertilizer from the fertilization device 5 to a farm field is provided on a front side of the seedling mount table 51. An extended seedling mount table 51 is provided so as to be switched between a planting work position and a non-planting work position, on a side of the seedling mount table 51, and the seedling feeding belt 51b is provided on the extended seedling mount table 51. The seedling transplanter further comprises a lock bolt 102 for connecting the rotation extended seedling mount table 51 which is switched to the planting work position, to the seedling mount table 51, and the lock bolt 102 is made pass in a wound area of the seedling feeding belt 51b.SELECTED DRAWING: Figure 8
