Some results of multicolor photometrical and polarimetrical investigations of the eclipsing binary V393 Cyg behaviour during 2001—2003 are presented. Light curves in U BV RI bands are given. An analysis of linear polarization changes was performed allowing us to carry out the decomposition of observed polarization into interstellar and intrinsic components. It is shown that intrinsic polarization degree of the system is not more than 0.1 %. This is an indication of absence of the optical thin gas in the system.