Nano composite fluorocarbon anti-icing coatings was prepared by using fluorocarbon resin as the base resin，nano SiO₂ and polytetrafluoroethylene（PTFE） as functional fillers. The focus was on the influence of surface characteristics and microstructure of paint films on the hydrophobicity and anti-icing performance under different types of base resin，different contents of nano SiO₂ and PTFE. The results showed that the anti-icing coating film prepared with a nano SiO₂ content of 25% of the pure solid resin and a PTFE content of 25% of the pure solid resin had a water contact angle of 128 °，a rolling angle of 6 °，and an icing force of 26.1 N. It also had excellent weather resistance，corrosion resistance，and resistance to liquid media，which could meet the requirements of multiple industrial fields for anti-icing.