NiCr/Ag-Mo composite coating was fabricated by atmospheric plasma spray technology using clad powders as the feedstock. Its tribological properties at variable temperature were evaluated using a ball-on-disk high-temperature tribometer in air. The results showed that compared with NiCr, the NiCr/Ag-Mo composite coating exhibited better lubrication effect and higher wear resistance at all test temperatures, especially above 600 A degrees C. At 800 A degrees C, NiCr/Ag-Mo composite coating showed the lowest friction coefficient of about 0.2 and its corresponding wear rate reached 2.5 x 10(-5) mm(3)/Nm. Characterizations of NiCr/Ag-Mo composite coating revealed that at temperatures below 400 A degrees C, Ag was smeared and spread onto the wear surface, reducing the friction and wear. At temperature above 500 A degrees C, the Ag2MoO4 lubrication film formed by tribo-oxidation significantly improved the coating's lubrication effect and wear resistance.