Abstract: The present invention relates to a polymer paint composition for waterproof and anticorrosion of concrete, which prevents neutralization and salt damage of concrete gradually degraded by external environment, by fundamentally blocking the material causing such damage, and a method for waterproof and anticorrosion of concrete structure using the same. In particular, the present invention relates to a paint polymer composition for preventing neutralization and salt damage of concrete structures in the atmosphere or under water, such as concrete structures in various marine environments, harbor structures, underground structures, exposed structures, structures neutralized by aging, bridge structures repeatedly exposed to wetness and dryness, structures exposed to chemical erosion by calcium chloride, SOx, NOx, etc.