The invention discloses a stone-saving artificial granite integral decorative plate and a production method of the stone-saving artificial granite integral decorative plate, which relates to a common Portland cement insulating decorative plate and the production method of the common Portland cement insulating decorative plate. The stone saving artificial granite integral decorative plate is appropriate for structural maintenance, insulation and decoration of an exterior wall of a building of a shear wall structure, a frame structure and a brick-concrete structure. The stone-saving artificial granite integral decorative plate comprises a polystyrene foaming plate, a polymer mortar surface layer, an anti-alkali containing glass fiber lattice, a polymer mortar inner layer and an artificial granite coating. The polymer mortar inner layer is coated on the outer part of the polystyrene foaming plate, the anti-alkali containing glass fiber lattice is paved on the outer part of the polymer mortar inner layer, the polymer mortar surface layer is poured outside the the anti-alkali containing glass fiber lattice, the artificial granite coating is sprayed outside of the polymer mortar surface layer, and a plurality of reserved holes are arranged on the polystyrene foaming plate. A mortar column is formed in the polymer mortar inner layer poured with the polymer mortar surface layer, and the polymer mortar inner layer, the polymer mortar surface layer, the anti-alkali containing glass fiber lattice and the polystyrene foaming plate are formed integrally.