Two kinds of fluorinated polymer surfactants P(RfAA–PEGMA-MAA) and P(RfAA-PEGMA-AMPS) containing Dodecafluoroheptyl Methacrylate（RfAA), α-Methacrylic Acid（MAA） or 2-Acrylamido-2-methylpropanesulfonic Acid（AMPS) and Methoxy Polyethylene Glycol 550 Methacrylate（PEGMA) were synthesized. Emulsifying properties of polymers to RfAA was discussed. The influence on monomer conversion and emulsifying properties of the polymers with different monomer species, monomer content, the amounts of initiator and chain transfer agent were discussed. The results showed that the two kinds of fluorinated polymer surfactants exhibited good emulsifying properties in which x (RfAA) : x (MAA or AMPS) : x (PEGMA) = 50% : 30% : 20%，the content of initiator was 4% in the total monomer quality and the content of chain transfer agent was 3% and 2% respectively in the total monomer quality. The lowest suface tensions of the two kinds of fluorinated polymer surfactants were 56.3mN/m and 49.1mN/m respectively. Their CMC was about 0.002g/mL.