PROBLEM TO BE SOLVED: To provide a rice transplanter comprising a conveyance device for conveying seedling trays in which preliminary seedlings are grown by utilizing driving means such as an electric motor.SOLUTION: A rice transplanter comprises: a traveling machine body a planting part for planting seedlings, which is located at the rear part of the traveling machine body a conveyance device for conveying seedling trays for preliminary seedlings in a front-to-back direction of the traveling machine body, which has a plurality of conveyance rollers provided at an appropriate interval in a conveying direction driving means for rotating at least a part of the conveyance rollers in a forward direction or a reverse direction with respect to the conveying direction and a transmission mechanism for transmitting the rotation by the driving means to other conveyance rollers, which is provided at the end parts of the conveyance rollers in a rotation axis direction.
