Abstract: The well-proportioned composite sols were prepared by using the sol-gel technology with tetraethyl orthosilicate (TEOS) and methyl triethoxy silane (MTES) as the precursors in alcohol-soluble fluorinated polymer solution with PTFE doping under the hydrochloric acid and deficiency of water conditions. The gelation occurred on the composite coating surface after the substrate was coated with composite sols. The experimental results showed that the micrometer-scale and nanometer-scale hierarchical structures were formed by micrometer-sized PTFE particles and nanometer-sized silica particles on the coating surface. The gelation occurred just on the surface of composite coating，which was confirmation by XPS results，and the morphology of coating surface was similar to a lotus leaf according to SEM observation. The super-hydrophobic coating with excellent mechanical properties could be fabricated by this technique according to different requirements.