Abstract: A high molecular weight permanent antistatic agent was prepared by solution grafting polymer. That is polypropylene (PP) as matrix, polyaniline(SPSS) for the graft, dodecylbenzene sulfonic acid (DBSA) as dopant (PPgSPSPANI) polymer complex . Inquiries into the effect of DBSA and initiator dosage on properties of polymer antistatic agent were made. PPgSPSPANI were characterized by FTIR and the fracture surfaces of PP blends were tested by SEM. The volume resistivity of PPgSPSPANI/PP can reduce to 1012Ω·cm and PPgSPSPANI /PP has good compatibility.