The results of works (including also the authors of the given review) in a field of obtaining the stable nanoparticles of silver and study of the mechanism of their f0rmation at reducing Ag ions in aqueous solutions in the presence of the natural and synthetic polymers, as well the influence of different factors on aggregation, size and sustainability nano size metallic particles According to the data obtained in researches it has been established that a form, state and intensity of plasma absorption strip of silver nanoparticles depend on conditions of their receiving. The methods of scanning electronic microscopy, X-ray phase analysis and UV-spectroscopy used in works permit to estimate size, form and distribution of nanoparticles in polymer, as well provide identification of nanoparticles in the metallic state.