PROBLEM TO BE SOLVED: To provide a walking type seedling transplanter, with which the supply of subsidiary materials to a field and seedling planting are carried out, while keeping a fixed relation, at all times.SOLUTION: Since the operation of a seedling planting apparatus 4 is stopped, each time the seedling planting apparatus 4 finishes the seedling planting operation of a single stock in a field by the intermittent operation mechanism K of the seedling planting apparatus 4. During the procedure, subsidiary materials (fertilizer, agrochemical, and the like) are supplied from a subsidiary material feed tank 44 and a feed part 44a to the seedling planting apparatus 4 and next, since the subsidiary materials can be fed to a field before seedlings, when seedlings are planted in a field, the subsidiary materials can be surely fed to a field, and the supply of the subsidiary materials to the seedling planting apparatus 4 will not be in the way of supplying seedlings to the seedling planting apparatus 4, regardless of the change in the operation stoppage time of the seedling planting apparatus 4.COPYRIGHT: (C)2009,JPO&INPIT【課題】常に一定の関係に保って圃場への副資材の投入と苗の植付と行うことができる歩行型の苗移植機を提供すること。【解決手段】苗植付装置4の間欠作動機構Kにより、苗植付装置4が1株の圃場への苗植付作動を終えるごとに苗植付装置4の作動を停止させ、その間に副資材供給タンク44と繰出部44aから副資材(肥料、薬剤など)を苗植付装置4に供給し、次に圃場への苗の植付時には副資材を苗より先に圃場に投入できるので、苗植付装置4の作動停止時間の変更に拘わらず、副資材を確実に圃場に投入でき、また副資材の苗植付装置4への供給で苗の苗植付装置4への供給の邪魔にならない。【選択図】図7