A head leading edge assembly includes a head leading edge shell and an external anti-icing coating outside the shell. The anti-icing coating comprises a primer and a finishing coat. The primer is an aqueous epoxy acrylate primer, and the finishing coat is an organosilicon modified acrylate paint. The primer and the finishing coat respectively have a dry film thickness of 26 mum and 47 mum. The organosilicon modified acrylate coating includes by weight 55-65% of organosilicon modified acrylic resin, 20-25% of a color filler, 3% of nano silica, 3% of nano alumina, 1% of a leveling agent, 0.8% of a defoaming agent, 1.2% of a dispersant, 0.5% of a catalyst and 3-5% of a solvent. The head leading edge assembly provided by the invention can effectively reduce the formation of ice layer on the head leading edge and facilitate falling of the formed ice layer.