Abstract: In in-mold labeling for applying a label or workpiece into a mold by using a robot hand apparatus, the robot hand apparatus has therein a static-electricity-generating apparatus for generating static electricity on a holding surface. The static electricity generating apparatus comprises a holding member attached to a surface of a base continuous with a hand of a robot and having a holding surface with approximately the same shape as that of the label on the side opposite to the attached surface, tungsten wires stretched using securing members in grooves opened on the side holding surface in the holding member, high-voltage cables with static electricity shields that are connected to the tungsten wires and are led to a high-voltage power source, and suction holes opened perpendicularly to the holding surface of the holding member and connected to a vacuum generating source.