Provided is a scanning range setting method using a surveying instrument configured to measure a distance to a measurement point by using a distance measuring light and measure an angle to the measurement point, and a scanner configured to scan with a scanning light around a rotation axis to acquire three-dimensional point group data. The method includes steps of: (A) measuring a distance to one or more measurement points by the surveying instrument, (B) storing coordinates and angles of the measurement points, (C) automatically setting an area including all of the measurement points as a scanning range by the scanner, and (D) scanning the scanning range by the scanner, wherein a coordinate system of the scanner and a coordinate system of the surveying instrument match each other.