For the existing problems of graphene/glass flake epoxy coatings，such as high environmental pollution，short anti-corrosion period，poor flexibility，and bad applicability for traditional spraying construction，a low-viscosity solvent-free graphene/glass flake epoxycoatings was prepared. The long carbon chain carbonyl compound functionalized toughenedresin and low molecular weight liquid bisphenol A epoxy resin were used as film-formingagents，solvent-free modified alicyclic amine and phenolic amine were used as curing agents. Atthe same time，nanoscale flake graphene and glass flakes were introduced to construct a three-dimensional shielding layer. The effects of the compounding ratio of resins，the compounding ratio of curing agents，the dosages of glass flakes and graphene on the anti-corrosion performance ofcoatings were explored. The results showed that when m（E51 epoxy resin）∶m（312 resin）=2∶1， m（CK-5106 alicyclic amine）∶m（D0590 phenolic amine）=10∶1，the mass fraction of glass flakes and graphene was 20% and 0. 4%，respectively，the viscosity of the coatings at room temperature was as low as 90 KU，which was suit for traditional high-pressure airless spraying.The prepared coating showed excellent anti-corrosion performance，good flexibility，and highvolume solid content close to 100%. The coating thickness could be reduced by 60% comparedto the traditional coating，which could meet the anti-corrosion standards and requirements infields such as petroleum refining and marine engineering.