The effects of carboxymethyl cellulose content on the viscosity,adhesion,spreading and suspension stability of graphite coating for slide gate were studied.The results showed that the viscosity,suspension stability,adhesion and spreading ability of the coating increased with the addition of cellulose,and the overall performance of the coating was the best when the addition of cellulose was 0.6%.The production practice has proved that the slide gate graphite coating with 0.6% cellulose addition has good workability,good adhesion and no falling off.