An electro-optical distance measuring method for measuring a distance to
an object to be measured by receiving a reflected light from the object
to be measured, comprising a step of projecting a pulsed laser beam with
a predetermined spreading angle from each of two or more known positions
so that two or more objects to be measured are commonly included, a step
of detecting reflected lights from the two or more objects to be measured
for each pulsed laser beam by discriminating the reflected lights for
each emitted pulse, a step of measuring distances to the two or more
objects to be measured from each of the known points based on the results
of detection of the discriminated reflected lights, and a step of
measuring coordinate positions of the two or more objects to be measured
based on the measured distances.