The invention discloses a spherical Co2AlO4 material, and a preparation method and application thereof. The preparation method of the spherical Co2AlO4 material includes the following steps: (1), dissolving a soluble cobalt source and an aluminum source in water according to the mole ratio of cobalt to aluminum being 2:1, and stirring the water to obtain a precursor solution; (2), subjecting the precursor solution obtained by stirring in the step (1) to spray pyrolysis to obtain the spherical Co2AlO4 material. The Co2AlO4 material prepared according to the preparation method has excellent electrochemical performance, and can serve as a cathode material for lithium ion batteries.