The invention relates to an anion-doped sodium ion battery oxide cathode material. The general formula of the material is NaaMbNcOdYy, wherein a is greater than 0.4 and smaller than 1, b is greater than 0 and equal to or smaller than 1, c is equal to or greater than 0 and equal to or smaller than 1, b plus c is 1, y is greater than 0 and equal to or smaller than 0.1, double d plus a value obtained by multiplying n and y is 4, and the n is the valence state of an anion represented by Y; M is one or more of variable-valence metal elements of Fe, Ni, Mn, Co, V, Cr and Ti; N is one or more of immutable-valence metal elements of Zn, Mg, K, Ca and Al; Y is one or more of F<->, Cl<->, SO4<2->, BO3<3->, PO4<3-> and SiO4<4->. According to the anion-doped sodium ion battery oxide cathode material, anion doping is introduced in a sodium ion battery oxide cathode material, the stability of the structure of the material can be maintained, the electrochemical performance of the material is improved, and the material has very good application prospects.