The invention belongs to the field of biomedical materials and relates to a novel method for improving degradability of apatite biomedical materials by electron irradiation. The ion release rate of hydroxyapatite blocks is improved by means of an electron irradiation method, so that the degradability of the hydroxyapatite is improved. From the perspective of a material microscopic crystal structure, the ion release rate of the hydroxyapatite is remarkably improved by utilizing the electron irradiation method. The method is simple to operate, the degradation rate of the hydroxyapatite can be greatly improved, and the modification effect is remarkable; the degradation rate of the apatite can be flexibly and effectively adjusted by regulating and controlling the irradiation dose of the electrons, so as to meet different actual clinical requirements; heterogeneous ions are not introduced into the method, thereby ensuring the phase purity of the material, and meanwhile, a complex three-dimensional structure does not need to be constructed, and the degradability of the material is improved by optimizing the crystal structure of the material; and according to the method, batch modification of the material can be realized, and large-scale production is realized.