Zinc　is　widely　used　in　battery　negative　electrodes　and　steel　coatings　for　automotive　industries.　The　anti-corrosion　property　of　zinc　is　the　most　important　factor　determining　the　performance　and　lifetime　of　the　products.　In　this　paper,　both　size-controlled　poly　N-(vinyl)pyrrole　(PNVPY)　nanoparticles　and　carbon　black　(CB)　nanoparticles　were　compounded　with　poly　(vinyl　butyral)　(PVB)　binder　developing　a　series　of　composite　coatings　covered　on　the　zinc　substrates　using　a　spin-coating　technique.　The　morphologies　of　the　surface　and　cross　section　of　the　PNVPY/CB/PVB　coatings　indicate　that　the　PNVPY　and　CB　nanoparticles　are　uniformly　distributed　in　the　matrix.　The　corrosion　resistance　of　the　composite　coatings　was　tested　by　electrochemical　impedance　spectroscopy　(EIS)　and　potentiodynamic　polarization　in　a　3.5%　NaCl　solution.　It　is　found　that　the　coating　with　1.9　wt.%　PNVPY　and　2.3　wt.%　CB　nanoparticles　shows　a　remarkably　high　resistance　value　(R-c)　and　corrosion　protection　efficiency　(99.99%).　Meanwhile,　the　immersion　results　also　reveal　its　superior　corrosion　resistance.　It　is　considered　that　the　nanoscale　dispersion　of　PNVPY　and　carbon　in　PVB　matrix　and　the　strong　interface　action　between　the　nanoparticles　and　PVB　result　in　the　uniform　microstructure　of　the　composites　which　endues　the　superior　corrosion　properties　of　the　coatings.