The present invention relates to a clutch device for a feeder box transfer conveyor, and is provided with a seeding machine, a cover machine, and a topper for supplying seeds and soil to the inside of the seedling box, and is provided for transferring the seedling box, receiving rotational power from a motor. A clutch device for a nursery box conveying conveyor provided on a seedling box conveying conveyor having a rotational transmission shaft that is provided to block or connect transmission of a rotational force of a motor to a seed drill, a covertor, or a top soil, respectively, in the seedling box conveying conveyor It is provided on the upper and provided on the transmission shaft that is rotated by receiving the rotational force of the motor, the rotational force is synchronized, is formed in a cylindrical shape, the inner front of the fixed gear is formed with a plurality of projections protruding forward, and of the fixed gear A bearing provided in the front and connected to be rotatable in the front of the transmission shaft, and provided with a diameter formed to be the same as the diameter of the transmission shaft, and a separation provided through the inside of the bearing and the transmission shaft as well as provided in the front of the bearing The prevention bolt is provided to be provided in a cylindrical shape in front of the fixed gear, and is provided to be slidable on a transmission shaft and a bearing. The cylindrical diameter is formed to be spaced inward of a plurality of protrusions formed on the fixed gear, and has an outer periphery. There are a plurality of spaced apart from each other protruding to the outside, and a clutch gear having a clutch projection engaged with the projection, formed in a pulley shape in front of the clutch gear, and provided with a connection, and a transmission provided to be slidable on the transmission shaft and bearing A pulley, a chain for providing transmission of rotational force to any one of the group c
