Boron nitride (BN) doped magnetic hydroxyapatite (MP) composites (MPBN) were prepared by co-precipitation method. The morphology, pore size, specific surface area, elemental composition, crystalline shape, surface functional groups and magnetic properties of MPBN were characterised by SEM, BET, FTIR, XRD, XPS and VSM, and the adsorption properties of MPBN on Pb(II) were investigated by single-factor adsorption experiments. The results showed that MP was successfully loaded in the lamellar structure of BN and MPBN was superparamagnetic. The adsorption amount reached 460.75 mg/g when the Pb(II) concentration was 250 mg/L, the temperature was 25 ℃, pH=6.0 and the MPBN was injected at 0.4 g/L. The adsorption process was in accordance with the Pseudo second-order kinetic model and the Langmuir isothermal model, indicating that the adsorption process of MPBN on Pb(II) was mainly attributed to the chemisorption of single molecular layer. ?H=94.76 kJ/mol and ?S=339.61 J/molK for the adsorption process were obtained by fitting the thermodynamic model, it can be inferred that the adsorption process is a spontaneous heat absorption process at room temperature. The MPBN also showed excellent stability and good recoverability after 5 cycles.