부산대학교 도서관

Provided is a work measuring method by which a deviation quantity of a work measuring point from a reference position can be measured in a short time. A work surface is set as a reference point when the measuring point is positioned at the reference position, and a distance from a photographing device to a reference surface is set as a reference distance. A deviation quantity of the measurement point in a direction intersecting a photographing direction on the reference surface is measured by the photographing device, and a deviation quantity of the measuring point in the photographing direction is measured by a laser distance sensor. Then, based on the deviation quantity measured by the photographing device, the deviation quantity measured by the laser distance sensor, and the reference distance, a deviation quantity of the measuring point in a direction intersecting the photographing direction is calculated.