The biological ceramics are prepared by the cotton stalks. They are sintered in the vacuum and the powder of cotton stalks are mixed with phenolic resin and then formed with hot-press. Sintering temperature and component ratio on performance of cotton stalks ceramics are analyzed compared with the poplar ceramics. The test shows it is possible that bio-ceramics can be prepared with the cotton stalks. Cotton stalks ceramics are similar to the poplar ceramics ...