To simplify the supporting structure of a seedling table driven by a driving force outputted from a transmission case and having variable lateral transfer speed and longitudinal transfer speed and to keep a vegetable transplanter in well balanced state by placing the transmission case to change the traveling speed and the seedling pulling speed at the longitudinal center of the machine body.

A driving case 84 holding a speed changer to change the lateral transfer speed and longitudinal transfer speed is placed above a transmission case 3, frames 340, 341 are protruded sideways backward from the right and left side faces of the driving case, a seedling table is supported between the rear parts of the frames in a laterally slidable manner, a longitudinal transfer driving shaft 123 is rotatably attached to the rear part of a frame, a lateral transfer driving shaft 85 is rotatably attached to the rear part of the other frame and the seedling table is driven through transmission mechanisms in individual frames.