<p>Disclosed is a polyimide film wherein the surface activity is enhanced, thereby improving adhesiveness of the surface. Also disclosed is a polyimide film with metal coat wherein the polyimide film and the metal coat are bonded together with a practically sufficient bonding strength. Specifically disclosed is a polyimide film on the surface of which a coated particle layer, which is composed of coated particles obtained by coating inorganic particles having an average particle diameter of not more than 1000 nm with a metal oxide, is arranged via a layer which contains both the same metal oxide as the one in the coated particle layer and a polyimide. Also specifically disclosed is a polyimide film with metal coat wherein a metal coat is arranged on the surface of the coated particle layer of such a polyimide film.</p>
