Lithographic printing plate precursor and method of preparing lithographic printing plate

A lithographic printing plate precursor comprising a support and one or more layers, wherein one of the one or more layers is a photosensitive layer comprising an initiator compound, a polymerizable compound and a binder polymer, and a layer being in contact with the support of the one or more layers comprises a copolymer containing a repeating unit having a zwitterionic structure and a repeating unit having a structure capable of interacting with a surface of the support,

• wherein the zwitterionic structure is a structure represented by the following formula (i) or (ii):
• wherein R1 and R2 each independently represents a hydrogen atom or a substituent having from 1 to 30 carbon atoms, L1 and L2 each independently represents an organic connecting group, A represents a carboxylate or a sulfonate, B represents a substituent having a positive charge, and * represents a site connecting to a main chain or side chain of the copolymer;
• wherein the structure capable of interacting with a surface of the support is a carboxylic acid structure, a carboxylate structure, a sulfonic acid structure, a sulfonate structure, a phosphonic acid structure, a phosphonate structure, a phosphoric acid ester structure or a phosphoric acid ester salt structure;
• and
• wherein the photosensitive layer is a layer different from the layer being in contact with the support.