Defect-modified　copolymer　P　(VDF-CTFE)　has　a　high　dipole　density　and　breakdown　field,　and　BaTiO3　(BT)　has　a　high　dielectric　constants.　Both　their　characteristics　can　be　achieved　in　P(VDF-CTFE)/BT　composites.　The　powders　of　BaTiO3　was　manufactured　by　sol-gel　methods　and　coupled　in　KH550.　The　composites　which　is　compounded　from　P(VDF-CTFE)　and　BT　exhibit　high　breakdown　field(300　MV/m),　high　electric　displacement(D　0.15　C/m2)　and　low　dielectric　loss.　The　results　indicate　that　these　composites　are　the　potential　materials　for　high　energy　density　capacitors.