PROBLEM TO BE SOLVED: To provide a riding type rice transplanter having a structure in which the piping routes of hoses for connecting feeding portions to furrow openers can simply be changed into piping routes not interfering with peripheral members. SOLUTION: This rice transplanter manufactured by liftably connecting a planter to a travel machine frame, disposing a hopper for putting agricultural granules therein and multiple row feeding portions for delivering the agricultural granules from the hopper on the travel machine frame, disposing a seedling tray 17 and furrow openers 19 for forming furrows for feeding the agricultural granules to the surface of a paddy field on the surface of the paddy field on the planter, and disposing hoses 23 for connecting the feeding portions to the furrow openers 19 is characterized by disposing piping route-changing mechanisms (support members 29) for laterally displacing the hoses 23 along the back side of the seedling tray 17 to change the piping routes for the hoses. COPYRIGHT: (C)2005,JPO&NCIPI