In this paper，active fluorinated polysiloxane was prepare by cationic ring-opening polymerization using trifluoropropylcyclotrisiloxane（D₃F）and octamethylcyclotetrasi. loxane（D4）as polymerization monomers，and tetramethyldihydrodisiloxane as capping agent.Then vinyl trimethoxy silane was connected to the end of polysiloxane chain throughhydrosilylation to obtain the one-component release agent. The effects of polymerization timeand temperature，amount of catalyst and capping agent，and monomer ratio on the performanceof release agent were investigated. The structure of the copolymer was characterized by FT-IR and ¹H NMR，the thermal stability was tested by TGA，the molecular weight and molecular weight distribution were measured by GPC，and the release properties was characterizedthrough water contact angle and peel force. The results showed that，when the ratio of D₃F and D4 was 7∶3，polymerization temperature was 75 ℃，polymerization time was 8 h，catalyst dosage was 5% and capping agent dosage was 2%，the prepared release agent had excellent performance with contact angle of 114. 5° and peel strength of 0. 188×10^-3 N/cm，showing good hydrophobicity and stripping performance.