Harsh marine environment makes anticorrosion to be a technical challenge of ocean engineering. Glass flake, as the pigment for under seawater coating, is required by anticorrosion standard and has been the bottleneck of Chinese marine technology. Basalt planar glass flake is novel anticorrosive pigment developed by the authors, which is environmentally friendly, strong, heavy-duty anticorrosion, water impermeable, anti-weather and UV blocking and superior to the traditional c-glass flake and basalt glass-ceramic flake. Epoxy resin has excellent properties of film forming, corrosion resistance, low permeability, high adhesion and dimensional stable. Hence, basalt glass flake reinforced epoxy resin coating has significant advantages in the marine engineering, in terms of anticorrosion.