PURPOSE: To provide a readily handleable grafting robot having a cutter capable of surely cutting a hard hypocotyl of the family Solanaceae. CONSTITUTION: This grafting robot for a plant belonging to the family Solanaceae is obtained by fixing a cutter blade 45 to one side of a parallelogrammatic cutter bracket 43 attached to a support 26 of a grafting robot substrate, thereby providing a stock cutter 19, installing the side of the cutter bracket 43 to which the cutter blade 45 is attached in the direction tilted from the vertical directions, forming the lower half of the side to which the cutter blade 45 of the cutter bracket 43 is attached into a notched state and attaching the cutter blade 45 to the interior thereof. Since the cutter blade 45 is fixed to a prescribed position, the cutting position is accurately obtained even in the hard hypocotyl of the plant belonging to the family Solanaceae and the regulation of the cutting position is facilitated. Since no time is required for moving the cutter blade 45 according to the constitution, the whole treating time can be shortened.
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