Lithographic printing plate precursor

A lithographic printing plate precursor comprising an image forming layer containing at least one polymer compound, the polymer compound having a fluoroaliphatic group on the side chain,

• wherein the fluoroaliphatic group is represented by the formula (1):
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• wherein R2 and R3 each independently represents a hydrogen atom or an alkyl group having from 1 to 4 carbon atoms, X represents a single bond or a divalent linking group, Y represents a moiety for binding to a polymer main chain, m represents an integer of 0 or more, and n represents an integer of 1 or more, and the polymer compound comprises four fluoroaliphatic groups in which n in formula (1) is 3, 4, 5 and 6, respectively,
• wherein the polymer compound satisfies one of the following conditions (I) and (II):
• (I) a monomer unit having the fluoroaliphatic group in which n in the formula (1) is 4, accounts for 40 to 97 mol % based on the sum total of the monomer units having groups in which n in the formula (1) represents 3, 4, 5 and 6;
• and
• (II) a monomer unit having the fluoroaliphatic group in which n in the formula (1) is 3, accounts for 40 to 97 mol % based on the sum total of the monomer units having groups in which n in the formula (1) represents 3, 4, 5 and 6.