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 Ra of 0.36 to 0.50 μm; not more than 3.0 recesses with a depth of at least 4 μm per 400 μm square region; and a surface area ratio ΔS5(0.02-0.2) determined from Sx5(0.02-0.2) denoting the actual surface area of a 5 μm square surface region as determined by three-point approximation based on data obtained by extracting 0.02 to 0.2 μm wavelength components from three-dimensional data on the surface region measured with an atomic force microscope at 512×512 points and S0 denoting the geometrically measured surface area of the surface region, of 50 to 90%.