Through the design of jet fuel resistance and tribological properties,the real condition of solid film lubricant in engine was simulated.The Jet fuel resistance and tribological properties of three kinds of solid film lubricants in the fuel system were researched and compared,including the solid film lubricant (Type A) which satisfied the standard of MILPRF46010,general aviation high temperature solid film lubricant (Type B) and aerospace mild temperature solid film lubricant (Type C).The results show that type A solid lubricant has no influence on the properties of jet fuel in a longtime contact,and jet fuel has little influence on type A solid film lubricant.Whether dipping in fuel or not,the average friction coefficient of type A solid lubricant is maintained in 002 to 005,and wear life is above 1 hour.Type A solid lubricant is obvious superior to type B and C solid lubricant in carrying capacity,wear life and fuel resistance properties,which is benefited from the synergistic antiwear effect between MoS2 and Sb2O3 in the type A solid lubricant.