The short summary: As gages laser scanning range finders which work on a principle of measurement of ranges to points of surfaces of object on the basis of measurement of an interval of time between the sent and reflected signal, or on measurement of shift of phases can be applied to 3D-scanning problems. Reception of measurements of set of points of a surface is provided with scanning system the scanner, developing a laser beam on two corners that allows to receive a file of ranges to an object surface in the set space angle. Application of laser scanning range finders is traditional for definition of the sizes and a binding of the internal closed and half-open spaces of natural and artificial objects, such as gorges, tunnels, factory premises, open-cast mines, etc.