The influence of naphthenic acid as antiwear additive on the lubricating properties of jet fuel,and the compatibility of naphthenic acids with other additives in jet fuel were evaluated,using both High Frequency reciprocating rig (HFRR) apparatus and Balloncylinder lubricity evaluator (BOCLE).The results show that the jet fuel has a good sensibility of naphthenic acid,it can meet the lubricity request of military jet fuel by adding 10 μg/g of naphthenic acid,meet the lubricity request of the jet fuel used in diesel engines by adding 100 SymbolmA@ g/g of naphthenic acid and meet the lubricity request of marine diesel fuel by adding 60 SymbolmA@ g/g of naphthenic acid.The naphthenic acid has a great compatibility with other additives including antistatic agent,metal deactivator and antiicing agent,it has good synergistic effect with antiicing agent,weak synergistic effect with antistatic agent and no synergistic effect with metal deactivator.