A environmentally friendly lubricant additive was prepared with metalfree phthalocyanine combining with amineedgefunctionalized graphene oxide.The structure was characterized by SEM,FTIR,Raman,and TGA.The dispersion stability investigated by UV-Vis indicates that the newly developed additive has good dispersion stability in trimellitate TM320 base oi.The fourball friction and wear tester MS-10A was used to evaluate its lubricating properties in trimellitate TM320 base oil.It is found that the amineedgefunctionalized graphene oxide combining phthalocyanine complex has excellent friction reducing and antiwear performance,the friction coefficient and wear scar diameter are 253% and 241% lower than pure base oil respectively.Through XANES and SEM-EDS analysis,it is found that the friction film is composed of functionalized graphene oxidephthalocyanine complex,indicating that it may be the strong coordination holes of phthalocyanine and the strong adsorption of amineedge functionalized graphene oxide,an effective interfacial lubricating film is quickly formed on the surface of the friction pair during the friction process.