Feldspar and Pb(NO3)2 power were mixed and reacted at 380℃. The product was analyzed with XRD. The XRD power diagram of the reaction results was observed, which had five strong reflection peaks of Pb-feldspar, with d values being 6.54, 3.42, 3.32, 3.27 and 2.57A, respectively. XPS analysis of reaction results shows that the binding energy of Pb 4f7/2in feldspar is between 138.39 and 138.44 eV. Pb2+can replace alkali and alkali earth elements in feldspar structure through ion exchange reactions, forming Pb-feldspar