PROBLEM TO BE SOLVED: To provide a seedling feeder that can more efficiently carry out the loading work and the delivery work of a multiplicity of rice plant seedlings with excellent practicability. SOLUTION: The seedlings-conveying mechanism 50 is arranged deeply inward the gateway 11 in the main frame 10 to which the seedling racks 20 of plural steps are liftably mounted so that the loading direction man be made switchable to the delivery direction. In addition, this seedling feeder is provided with the operation means that can select the loading mode in which the seedlings F fed to the gateway 11 are fed in longitudinal rows toward the seedling rack 20, the delivery mode in which the seedlings F that are longitudinally received in the seedling rack 20 is delivered out to the gate way, and the forcibly one stepping-up mode in which the seedling rack 20 is forcibly raised up by one step.
