Electrophotographic lithographic printing plate precursor

An electrophotographic lithographic printing plate precursor comprising a conductive support having provided thereon at least one photoconductive layer containing photoconductive zinc oxide, a spectral sensitizing dye and a binder resin, characterized in that the binder resin of the photoconductive layer comprises at least one resin (A) described below and the photoconductive layer further contains at least one non-aqueous solvent dispersed resin grain (L) described below having an average grain diameter equivalent to or smaller than the maximum grain diameter of the photoconductive zinc oxide grain:

• Resin (A):
• resin having a weight average molecular weight of from 1.times.10.sup.3 to 2.times.10.sup.4 and containing not less than 30% by weight of a polymer component corresponding to a repeating unit represented by general formula (I) described below and from 0.5 to 15% by weight of a polymer component having at least one polar group selected from the group consisting of --PO.sub.3 H.sub.2, --SO.sub.3 H, --COOH, ##STR296## (wherein R.sub.01 represents a hydrocarbon group or --OR.sub.02 (wherein R.sub.02 represents a hydrocarbon group)) and a cyclic acid anhydride-containing group, ##STR297## wherein a.sub.1 and a.sub.2 each represents a hydrogen atom, a halogen atom, a cyano group or a hydrocarbon group;
• and R.sub.03 represents a hydrocarbon group;
• Non-aqueous solvent dispersed resin grain (L):
• polymer resin grain obtained by subjecting, to a dispersion polymerization reaction in a non-aqueous solvent, a monofunctional monomer (C) which is soluble in the non-aqueous solvent but becomes insoluble in the non-aqueous solvent by being polymerized and contains at least one functional group capable of forming at least one group selected from a thiol group, a sulfo group, an amino group and a ##STR298## group (wherein Z.sub.0 represents an oxygen atom or a sulfur atom;
• and R.sub.1 ' represents --Z.sub.0 --H, a hydrocarbon group or --Z.sub.0 --R.sub.2 ' (wherein R.sub.2 ' represents a hydrocarbon group)) upon decomposition, in the presence of a dispersion stabilizing resin which is soluble in the non-aqueous solvent, wherein the dispersion polymerization reaction is conducted under a condition that the dispersion stabilizing resin contains a repeating unit having a silicon and/or fluorine atom-containing substituent and/or that a monofunctional monomer (D) which is copolymerizable with the monofunctional monomer (C) and which has a silicon and/or fluorine atom-containing substituent is additionally coexistent.