Paper-based copper-clad plate preparation method

The invention relates to a paper-based copper-clad plate preparation method. The method includes steps: 1) well mixing a film forming material, inorganic heat conducting filler and a flame retardant to obtain a mixture, and conveying the mixture to a storage chamber of a laminating machine; 2) performing single-side lamination, to be more specific, laminating the mixture to bleached wood pulp paper in a laminating machine, and cooling to obtain single-side laminated bleached wood pulp paper; 3) double-side lamination, to be more specific, controlling the laminating machine for laminating the mixture on the other surface of the bleached wood pulp paper, and cooling to obtain double-side laminated bleached wood pulp paper namely an insulating sheet; 4) overlapping multiple insulating sheets,performing single-side or double-side attachment of copper foils, and performing vacuum thermal compression to obtain a paper-based copper-clad plate. By a lamination mode for substituting a glue coating mode for producing t