Abstract: The MPU and EA anti microbiologically influenced corrosion coatings including high performance bactericides were developed according to the microbiologically influenced corrosion state of the underwater steel and concrete structures in water conservancy & hydroelectric projects. The MPU coating was got by modifying acrylic polyurethane resin using MP resin which has the character of inner plasticization, and the EA coating by modifying epoxy resin using asphaltum which has the character of some sterilization.