PROBLEM TO BE SOLVED: To reduce damage to seedling root parts and to facilitate the seedling feed by sandwiching, transporting and feeding of the seedling root parts in a seedling feeder of a seedling transplanter. SOLUTION: The seedling feeder of the seedling transplanter is obtained by composing a seedling holder 2 nipping each seedling A and feeding the seedling A to a planting apparatus part as follows. The top bases 4 of a pair of mutually opposite seedling nipping pieces 3 are fixed to a holder bracket 5 at a prescribed opposite interval and the lower free ends 6 are mutually brought near and composed of a nearly V-shaped form. A seedling receiving bottom 7 for receiving the nipped seedling A is composed on the lower side of the free ends 6. COPYRIGHT: (C)2003,JPO