The manual shows the technical equipment of ground-based optical astrometry observation equipment. Presented description of modern automatic meridian telescopes of various designs, Astrograph telescopes on parallax mount, CCD-equipped cameras Shown methods of studying and determining the positions of celestial objects in modern astrometric programs , As on individual instruments, as well as by means of complexes. Brief information on the application of the method of interferometry in the optical range in ground astrometry on individual specialized telescopes and their complexes. The limits of ground-based astrometric instruments are shown. Comparative data on space projects planned for the near future with astrometric topics. The manual is designed for university students, graduate students and researchers, as well as individuals who independently study modern astronomy and astrometry .