The invention discloses a high-performance priming and finishing combined paint with corrosion inhibition, pollution prevention and heavy corrosion protection functions. The paint comprises two components: a component A includes a curing agent, an adhesion promoter, a wetting dispersant, silicon dioxide, hollow glass beads, talcum powder, nano micro powder, an anti-settling agent, a curing accelerator and an environment-friendly solvent; and a component B includes solvent-free liquid epoxy resin, modified elastic epoxy resin, silica sand, a wetting dispersant, superfine precipitated barium sulfate, titanium dioxide, aluminum triphosphate, barium metaborate, nano micro powder, an anti-settling agent, multi-functional auxiliaries, a corrosion inhibitor, an anti-fouling agent, high-strength hollow glass beads and an environment-friendly solvent. By aid of reasonable allocation of the component concentration, the paint has excellent adhesive force, durability, abrasion resistance and impact resistance, and excellent salt water resistance, oil resistance, alkali resistance and a certain degree of acid resistance; and the solid content is high, and the construction is convenient.