The kinetics and thermodynamics of the adsorption of aqueous iron (Ⅲ) on hydroxyapatite were investigated. The result indicates that the adsorption equilibrium follows Langmuir adsorption isotherm: c_t/q=0.006 4 c_t+0.018 3. The reaction of adsorption is in accord with the first reaction kinetics equation: lnC_R=-0.043 5 t+4.324 4, and the reaction of adsorption energy E_a is 36.26 kJ/mol. Thermodynamic parameters were calculated. The positive values of standard enthalpy of adsorption has revealed the enothermic nature of the adsorption process. The negative values of Gibbs free energy are indicative of the spontaneity of the adsorption process when the temperature is higher than 285.7 K.