1. A three-dimensional (3-D) coordinate measuring method wherein: an electrooptical distance-measuring device is used to measure a linear distance to a coordinate-measurement target point set on a surface of a measurement target object; an angle measuring device is used to measure shifted angles of an optical axis of the electrooptical distance-measuring device; and and a 3-D coordinate of the target point is measured according to a measured distance and a measured angle after the optical axis of the electrooptical distance-measuring device has been aligned to the target point set on the surface of the measurement target object, the 3-D coordinate measuring method comprising: a coordinate recognizing step for observing a plurality of targets on the overall surface of the measurement target object through an image capturing means, recognizing a plurality of target points on the surface of the measurement by processing obtained images, and calculating approximate 3-D coordinates of the target points; a macroscopic sighting step for approximate aligning the optical axis of the electrooptical distance-measuring device so that one of the target points recognized by the coordinate recognizing step is included into a predetermined viewfield range; and a microscopic sighting step for aligning the optical axis of the electrooptical distance-measuring device, which has been approximately aligned at the macroscopic sighting step, to the one of the target points in the predetermined viewfield range.