Abstract: Polymer films were fabricated by blending the P（VdF-HFP） and PMMA, PMMA has better compatibility with the liquid electrolyte. When the PMMA content reaches 45%, the liquidelectrolyte uptake amount is 260%, ion conductivity （20℃） is 0.95mS/cm. The Li-ion polymer battery, which consists of LiCoO₂ cathode, carbon fiber anode and the polymer electrolyte based on P（VdF-HFP）-PMMA and 1mol/L LiPF₆(in EC/EMC mixture, shows 95%of the initial dischargecapacity at 35 cycle upon the repeated charge/discharge at 1/3C rate, and 73%initial discharge capacity at 2C rate.