PROBLEM TO BE SOLVED: To provide a seedling transplanting machine with a loading auxiliary device in which the loading of working materials such as fertilizer bags can easily be performed from the outside of a field, and the loaded working materials can easily be moved to the vicinity of a seedling planting part and a fertilizing unit, and thereby the replenishment of the working materials can easily be performed.SOLUTION: A seedling transplanting machine is configured by: providing a seedling planting part 3 and a fertilizing unit 5 at the rear of a traveling vehicle body 1 traveling a field providing a spare seedling frame 6 for loading spare seedlings in the front part of the traveling vehicle body 1 turnably providing a turning arm 8 to a supporting member 7 of the spare seedling frame 6 removably providing a loading member 9 for loading working materials to the turning arm 8 and turnably constituting the turning arm 8 between a loading work position where the loading member 9 is projected from the traveling vehicle body 1 and a replenishing work position positioned on the traveling vehicle body 1.COPYRIGHT: (C)2015,JPO&INPIT【課題】 圃場外から肥料袋等の作業資材の積込を容易に行えると共に、積み込んだ作業資材を苗植付部や施肥装置の近傍まで容易に移動させ、作業資材の補充を容易に行うことのできる積込補助装置を備える苗移植機を提供する。【解決手段】 圃場を走行する走行車体1の後部に苗植付部3と施肥装置5を設け、走行車体1の前部に、予備の苗を積載する予備苗枠6を設け、予備苗枠6の支持部材7に回動アーム8を回動自在に設け、回動アーム8に作業資材を積載する積載部材9を着脱自在に設け、回動アーム8を積載部材9が走行車体1から突出する積込作業位置と、走行車体1上に位置する補充作業位置との間で回動自在に構成する。【選択図】図3