TO PROVIDE A SEEDLING TRANSPLANTER CAPABLE OF EFFECTIVELY SWITCHING THE SEEDLING HOLDERS BETWEEN THEIR FIRST AND SECOND CONFIGURATIONS； KEEPING THE SEEDLINGS FROM FALLING OFF THE SEEDLING HOLDERS, DESPITE SHAKY MOVEMENT OF THE BODY PORTION； IMPROVING THE OPERATIONAL EFFICIENCY BY DISPOSING, TO THE FRONT OF THE BODY PORTION, THE SEEDLING HOLDERS THAT ARE ARRANGED TO BE THE TOPMOST AND MIDDLE LEVELS IN THEIR SECOND CONFIGURATION； AND HOUSING SEEDLING BOXES OR SEEDLING SHIFTING MEMBERS IN A CERTAIN LOCATION. [SOLUTION] A PLANTING UNIT (16) IS PROVIDED IN A VEHICLE, THE PLANTING UNIT (16) FOR PLANTING A SEEDLING INTO FARM FIELD； AN OPERATION UNIT (10) IS PROVIDED IN THE VEHICLE, THE OPERATION UNIT (10) INCLUDING A DRIVER’S SEAT (12) AND A STEERING WHEEL (18)； A SUPPORT MEMBER (24) IS FIXED TO THE VEHICLE, THE SUPPORT MEMBER (24) INCLUDING A PLURALITY OF SEEDLING HOLDERS PROVIDED THEREIN THROUGH A LINK MEMBER, THE SEEDLING HOLDERS FOR LOADING THE SEEDLING； AND THE LINK MEMBER IS ROTATED, BY A SWITCH ACTUATOR (22), TO FREELY SWITCH THE CONFIGURATION OF SEEDLING HOLDERS BACK AND FORTH BETWEEN FIRST AND SECOND CONFIGURATIONS, THE FIRST CONFIGURATION BEING FRONT-REAR HORIZONTAL, THE SECOND CONFIGURATION BEING VERTICAL. [REPRESENTATIVE DRAWING] FIG. 10
