PROBLEM TO BE SOLVED: To provide a seedling transplanter attached with a preliminary seedling stand, capable of increasing the load number of seedlings without changing the structure of a conventional preliminary seedling frame.SOLUTION: By installing a preliminary seedling frame 38 equipped with a plurality of preliminary seedling stands 38a, 38b, 38c for loading preliminary seedlings in the front side of a machine body, and a seedling frame-support frame 49 for receiving a rotative support frame 80 rotatably supporting the preliminary seedling frame 38, and installing a first auxiliary seedling stand 38d independent of the preliminary seedling frame 38 to the rotative support frame 80, the load number of seedlings can be increased without changing the structure of the preliminary seedling frame 38, and therefore it is not necessary for the transplanter to return to the edge of a field to supply a shortage of the seedlings to planting rows and the working efficiency becomes better than that of a conventional technology.COPYRIGHT: (C)2014,JPO&INPIT【課題】従来の予備苗枠の構造を変更することなく苗の積載数を増やすことができる予備苗載せ台を取り付けた苗移植機を提供すること。【解決手段】機体の前側に予備の苗を積載する予備苗載せ台38a,38b,38cを複数備えた予備苗枠38と該予備苗枠38を回動可能に支持する回動支持フレーム80を受ける苗枠支持フレーム49を設け、回動支持フレーム80に予備苗枠38と独立した第1補助苗載せ台38dを設けたことにより、予備苗枠38の構造を変更することなく苗の積載数を増やすことができるので、植付条数に対して不足する苗の補充に圃場端に戻る必要がなく、作業能率が従来技術より向上する。【選択図】図1