First,Hyperbranched polyurethane with carbon-carbon double bond terminated was prepared with HDI,PEG-600,TEOA,HEA as performed polymer.Second,HPUFA was synthesized by C6F, SMA, HEA, BA and performed polymer by radical polymerization .The structure and properties of product were investigated by FT-IR, SEM,contact angle.The results showed that application effect of HPUFA was good when nNCO/nOH was equal to one point four and the content of HPUFA was one point five gram per one hundred ethyl acetate .The contact angle of fabric with HPUFA treated reached 137篴nd the time of static water absorption reached nine point five and oleophobic grade was six .