PURPOSE: To improve adhesive property to a photosensitive resin such as an unsaid. polyester oligomer by specifying the mixing ratio between specified vinyl chloride resin and nitrile rubber contained in the resin of an adhesive layer on a substrate.

CONSTITUTION: This support for a photosensitive resin plate consists of a substrate and an adhesive layer formed on the substrate. The resin of the adhesive layer contains vinyl chloride resin (A) having 250-850 average degree of polymn. and 60-91wt.% vinyl chloride content, e.g. a vinyl chloride-vinyl acetate copolymer and nitrile rubber (B) having 18-53wt.% acrylonitrile content, e.g. an acrylonitrile-butadiene copolymer in (80:20)-(50:50) weight ratio of A:B. A polyester resin film may be used as the substrate and an underlayer of acrylic resin, etc., is preferably formed on the substrate so as to attain easy adhesion.