An electrophotographic photoreceptor, including a crosslinked material including: units obtained from a radical polymerizing monomer A having three or more radical polymerizing groups; a compound B having the following formula (1): B.sub.1--Ar.sub.1--CH.dbd.CH--Ar.sub.2--B.sub.2 (1) wherein Ar.sub.1 represents a substituted or an unsubstituted monovalent group or bivalent group formed of an aromatic hydrocarbon skeleton; Ar.sub.2 represents a monovalent group or a bivalent group formed of an aromatic hydrocarbon skeleton or heterocyclic compound skeleton having one or more tertiaryamino group; and at least one of B.sub.1 and B.sub.2 is a hydrogen atom, and the other is an acryloyloxy group; a methacryloyloxy group; a vinyl group; an alkyl group having an acryloyloxy group, a methacryloyloxy group or a vinyl group; or an alkoxy group having an acryloyloxy group, a methacryloyloxy group or a vinyl group; and a photo polymerization initiator.