The hydrated lanthanum oxide(LaH) was synthesized and it was loaded on amino methylene phosphonic acid resin(APAR) to form the hybrid adsorbent LaH-APAR.The structure and thermal properties of LaH-APAR were tested using Fourier transform infrared spectrum(FT-IR) and thermogravimetric analysis(TGA).And then,it was investigated that pH values and temperatures affected the adsorption property of LaH and LaH-APAR for fluoride ion.The results show that LaH-APAR hybrid sorbent formed by La3+ and APAR with coordination bond is relatively stable below 300 ℃.Its adsorption property is similar to that of LaH,i.e.it is less affected by pH value,so it can be used in a wide pH range.Besides,under a stable pH,adsorption capacity of LaH-APAR also increases along with increasing temperature.As a result,it is a temperature-controlled sorbent and belongs to chemical adsorption.