An operation machine comprising: a holding head including a holding tool configured to hold a component loaded at a given position; an imaging device configured to image the component loaded at the given position; a moving device configured to move the holding head; and a control device, the control device being provided with a first operation control section configured to control operation of the holding head and the moving device such that the component loaded at a first height is held by the holding tool, and the component held by the holding tool is loaded to a set position, a first imaging section configured to image the component loaded at the first height before the component is held by the holding tool and to image the component loaded at the set position by the first operation control section, a second operation control section configured to control operation of the holding head and the moving device such that the holding tool holds the component loaded at a second height that is different to the first height, and loads the component held by the holding tool at the set position, a second imaging section configured to image the component loaded at the second height before the component is held by the holding tool and to image the component loaded at the set position by the second operation control section, and a calculating section configured to calculate a position deviation amount of the loaded component with respect to a difference between the first height and the second height based on imaging data acquired by the first imaging section and imaging data acquired by the second imaging section. a holding head including a holding tool configured to hold a component loaded at a given position; an imaging device configured to image the component loaded at the given position; a moving device configured to move the holding head; and a control device, the control device being provided with a first operation control section configured to control operation of the holding head and the moving device such that the component loaded at a first height is held by the holding tool, and the component held by the holding tool is loaded to a set position, a first imaging section configured to image the component loaded at the first height before the component is held by the holding tool and to image the component loaded at the set position by the first operation control section, a second operation control section configured to control operation of the holding head and the moving device such that the holding tool holds the component loaded at a second height that is different to the first height, and loads the component held by the holding tool at the set position, a second imaging section configured to image the component loaded at the second height before the component is held by the holding tool and to image the component loaded at the set position by the second operation control section, and a calculating section configured to calculate a position deviation amount of the loaded component with respect to a difference between the first height and the second height based on imaging data acquired by the first imaging section and imaging data acquired by the second imaging section. a first operation control section configured to control operation of the holding head and the moving device such that the component loaded at a first height is held by the holding tool, and the component held by the holding tool is loaded to a set position, a first imaging section configured to image the component loaded at the first height before the component is held by the holding tool and to image the component loaded at the set position by the first operation control section, a second operation control section configured to control operation of the holding head and the moving device such that the holding tool holds the component loaded at a second height that is different to the first height, and loads the component held by the holding tool at the set position, a second imaging section configured to image the component loaded at the second height before the component is held by the holding tool and to image the component loaded at the set position by the second operation control section, and a calculating section configured to calculate a position deviation amount of the loaded component with respect to a difference between the first height and the second height based on imaging data acquired by the first imaging section and imaging data acquired by the second imaging section.