Abstract: A polynary composite oxide material, a preparation method, and a use thereof are disclosed. The structural formula of this material is Li[LikNi(a+b)CocMnaZrd]O2, wherein the element coefficients need to satisfy: 0.03?k?0.15, 0.22?a?0.33, 0<b?0.16, 0.30?c?0.40, and 0.001?d?0.050, k+6a+3b+3c+4d=3 and a+b?c. This material can be used as a positive electrode active material for a lithium ion battery with high-rate performance and a long cycle life, etc., and can be manufactured on a large scale quickly and at a low cost. This material is suitable for power type lithium ion batteries used in electric vehicles, electric bicycles, and electric tools.