A kind of fluorinated polyacrylate soap-free emulsion textile finishing agent was prepared using perfluoroalkyl acrylate (FEA) as functional monomer by soap-free emulsion copolymerization, and the size and distribution of emulsion particle and the surface activity of polymer solution were studied. With water and oil repellency textile finishing application experiment, the effects of the textile finishing agent dosage and the baked temperature were discussed in detail, and other performances were tested. The result showed that, the textile finished by the said water and oil repellency textile finishing agent had excellent water and oil repellency properity, its dynamic waterproofing score was 90 point and the oil-proofing grade could reach above level 5, the water contact angle is up to 142.5° and oil contact angle is up to 126° through finishing treatment, and it had good washing durability and general performance.