In　some　adjusting　mechanism,　solid　self-lubricating　material　that　has　hot-resistant　and　corrosion-resistant　is　need　for　adapting　the　work　condition.　In　the　present　article,　by　the　comparison　study　of　mass　loss　and　surface　topography　after　corrosion　in　acid　solution　and　vapour　of　the　four　kinds　of　material,　graphite,　polymer,　BN　composite　and　cermet,　it　was　found　that,　graphite　has　good　corrosion-resistant　to　acid　solution　and　vapour　under　200　degrees　C,　but　the　corrosion-resistant　will　become　worse　dramatically　under　400　degrees　C,　polymer　has　worse　corrosion-resistant　behavior　above　200　degrees　C.　By　comparison,　BN　self-lubricating　composite　has　better　hot-resistant　and　corrosion-resistant,　which　can　meet　the　demand　of　the　work　condition.