Phosphorylated polyvinyl alcohol/hydrochloric acid-doped polyaniline(P-PVA/PANI HCl) with excellent suspension property was prepared by chemical oxidation.Phosphorylated polyvinyl alcohol(P-PVA) was prepared using urea as catalyst,polyvinyl alcohol(PVA) and phosphoric acid as raw materials and deionized water as solvent.P-PVA/PANI HCl was prepared by P-PVA as a stabilizer and hydrochloric acid as a dopant.The structure and morphology of the product were characterized by infrared spectrometer and transmitting electron microscope(TEM),and the suspension property of the product was tested.The results show that under the ANI/P-PVA mass ratio of 1:1 and aniline/hydrochloride molar ratio of 2:3 conditions,the suspension property of P-PVA/PANI HCl is best in water.TEM test indicates that PANI HCl is easy to aggregate,and P-PVA/PANI HCl is well-dispersible with spherical shape.