PROBLEM TO BE SOLVED: To provide a seedling transplanter which can easily align a seedling planting end position before rotation and a seedling planting start position after the rotation regardless of a workers proficiency level.SOLUTION: A seedling transplanter includes: a seedling planting part arranged at a rear part of a travel vehicle body so as to be lifted/lowered a switch device switching transmission to the travel vehicle body and seedling planting part a switch operation member switching and operating the switch device a float arranged on the seedling planting part and contacting the ground an angle detection member detecting a rotation angle of the float a planting operation on/off member turning on/off operation of the seedling planting part a stop planting position detection member forming a stop planting position for turning on the planting operation on/off member in a state in which transmission to the travel vehicle body is blocked when the switch operation member is operated, and detecting the operation of the switch operation member to the stop planting position and a control device turning off the planting operation on/off member even in a detection state of the stop planting position detection member if the detection angle of the angle detection member is out of a predetermined angle range.SELECTED DRAWING: Figure 18
