The utility model provides a seedling tree -remover can alleviate the required work load of loading work of operation material. Be provided with during the seedling inserts portion of planting and fertilizer injection unit's seedling tree -remover at the rear portion of the automobile body that goes, adopt following structure: anterior rotation the at the automobile body that goes is provided with the preparation gripper arm freely and removes loading attachment (100) of sending the operation material, loading attachment (100) constitute for can freely removing to the loading work position of organism front side and organism side salient and additional work location (133) of sticing out towards fertilizer injection unit (70), loading attachment (100) by set to the rotation freely loading arm (110) and set up and constitute in loading parts (102) of loading arm (110), be formed with on loading parts (102) notch (122), when making loading attachment (100) remove the loading work position, notch (122) are located the organism outside, when making loading attachment (100) remove additional work location (133), notch (122) are located the organism inboard.