Abstract: In order to realize the comprehensive utilization of rice husk resources, rice husk based ceramic (RBC) composites were prepared by using rice husk powder as a raw material, phenolic resin as the binder, graphite and molybdenum disulfide as solid lubricants. Effects of solid lubricants (graphite and molybdenum disulfide) on the tribological behavior of RBC composites were investigated using a controllable atmosphere tribometer in order to extend the application of RBC particles (e.g. sliding bearing and electric brush). Results show that the addition of 10% graphite (or molybdenum disulfide) in the RBC composites, the wear resistance and friction reduction properties of the composites were significantly improved. The tribological properties of RBC composites with 10% graphite were better than the RBC composites with addiion of molybdenum disulfide. Among them, the graphite-containing composites produced a dense friction film under low load (or velocity), and improved the friction reduction and wear resistance. The wear debris of molybdenum disulfide-containing composites produced, abrasive wear and led to higher wear. Besides, the wear of both composites became serious in high load and velocity conditions due to friction induced material surface fatigue wear as evident by in a large number of pits.