The task group prepared HAP by choline chloride-glycerol ionic liquid dissolving chicken bones. The dissolution process were tested and analyzed by univariate experiment and orthogonal experiment. The optimal dissolution parameters explored by orthogonal test were solid-liquid ratio of 1 ∶ 20,the dissolved temperature of 115 ℃,the dissolved time of 4 h. Extract products were characterized by the methods of FTIR spectra,SEM,Zeta potentiometer and hemolysis test. The result showed that the HAP structure was s...