Abstract: Ti alloy was used as the matrix material, the ultra-fast laser was used to process the microstructure and compounded nano SiO₂/fluorinated polyurethane coating to obtain the micro-nano structure coating surface, and this surface was compared and analyzed with the nano structure surface by spraying coating and the untreated surface. Scanning electron microscopy, ultra depth of field microscopy, contact angle and ice bonding force measuring instrument were used to study the surface morphology, hydrophobicity and anti-icing performance of the untreated Ti alloy surface, the nano structure surface and the micro-nano structure surface. The results show that the surface-prepared coating with micro-nano structure has the best superhydrophobicity, showing a contact angle of approximate 158.9° . Compared with the untreated Ti alloy surface and the nano structure surface, the ice adhesion strength of the micro-nano structure is significantly reduced, and the surface ice adhesion strength is about 410 kPa.