A lithographic printing plate support capable of obtaining a presensitized plate which is excellent in scumming resistance and scratch resistance and achieves a good balance between sensitivity and press life, and a method of manufacturing the support are provided. The support includes a surface which has an arithmetic mean roughness R.sub.a of 0.36 to 0.50 .mu.m; not more than 3.0 recesses with a depth of at least 4 .mu.m per 400 .mu.m square region; and a surface area ratio .DELTA.S.sup.5(0.02-0.2) determined from S.sub.x.sup.5(0.02-0.2) denoting the actual surface area of a 5 .mu.m square surface region as determined by three-point approximation based on data obtained by extracting 0.02 to 0.2 .mu.m wavelength components from three-dimensional data on the surface region measured with an atomic force microscope at 512.times.512 points and S.sub.0 denoting the geometrically measured surface area of the surface region, of 50 to 90%.