The principal purpose of the present invention is to provide a paper laminate which exhibits excellent separation properties and high barrier properties. A paper laminate having a paper substrate, and a resin layer and protective layer on at least one surface of the paper substrate, wherein the density of the paper substrate is 0.50g/cm3 to 0.90 g/cm3, inclusive, the surface on one side of the paper substrate is a smooth surface, the Oken-type smoothness of the smooth surface when measured according to JIS P 8155:2010 is at least 100 seconds, the resin layer contains a water-dispersible polymer, a plate-shaped inorganic compound having an aspect ratio of 50 or more and a cationic resin, and the protective layer contains a water-soluble polymer.