This study investigated the acid doping of polypyrrole (PPY) using three solutions: hydrochloric acid (HCl), dodecylbenzene sulfonic acid (DBSA), and 1-butyl-3-methylimidazolium tetrafluoroborate (LB104) as dopants. Four conductive lubricating greases were prepared with these dopants based on composite lithium-based grease (LCG). The research aimed to explore the physicochemical properties and tribological performance of conductive lubricating greases. Experimental results indicate that acid-doped PPY conductive lubricating greases exhibit lower resistivity and higher dropping points. Moreover, these lubricating greases can form stable boundary lubricating films, demonstrating excellent anti-friction and anti-wear properties. Among them, the additive with LB104-doped PPY shows superior anti-friction and anti-wear performance, as well as conductivity, suggesting broad prospects for application in the field of conductive lubrication.