The positive electrode material for a lithium ion polymer battery of the present invention is active material particles including core particles represented by General Formula LixAyDzPO4 and the carbonaceous film that coats surfaces of the core particles, wherein a paste including the active material particles has a viscosity of 5,000 mPa·s or less when a viscosity of the paste is measured at a shear rate of 4.0 [1/s], wherein the paste is a mixture of the active material particles, an ion-conductive polymer, a conductive auxiliary agent and a solvent, in which the active material particles, the ion-conductive polymer and the conductive auxiliary agent are included in the paste in a mass ratio of 66:30:4, and a total solid content of the paste is 40% by mass.