Component mounting machine and correction value calculation method

A component mounting machine includes a suction nozzle, a head, an XY movement mechanism, a substrate conveyance device, and a control device. The control device includes a component mounting position setting unit, a component mounting height setting unit, a mounting position correcting unit, and an XY movement mechanism driving unit. The component mounting position setting unit sets, for each component mounted on the substrate, a component mounting position, which is a position in the X direction and the Y direction in which the component is mounted. The component mounting height setting unit sets, for each component mounted on the substrate, a component mounting height, which is a position in the Z direction in which the component is mounted. The mounting position correction unit corrects the component mounting position of the component set by the component mounting position setting unit, using a first correction value that differs in accordance with the component mounting height of the component set by the