A lithographic printing plate precursor comprising an aluminum substrate, an
image-recording
layer and a hydrophilic film, the aluminum substrate being subjected to an electrochemical
surface-roughening treatment in an aqueous solution comprising hydrochloric acid
and provided with the hydrophilic film having a heat conductivity of 0.05 to 0.5
W/mK and/or at least one of a density of 1,000 to 3,200 kg/m3 and a
porosity of 20 to 70%; and a lithographic printing plate precursor comprising an
aluminum substrate, an image-recording layer and a hydrophilic film, the aluminum
substrate having a surface-roughened shape comprising a small pit wherein an average
opening size of the small pit is 0.01 to 3 m and a ratio of an average depth
of the small pit to the average opening size is 0.1 to 0.5, and being provided
with the hydrophilic film having a heat conductivity of 0.05 to 0.5 W/mK and/or
at least one of a density of 1,000 to 3,200 kg/m3 and a porosity of
20 to 70%.