Abstract: In this paper,an experimental solution of chemical flocculation is proposed for the problems of waste flush fluid in Pingguo Aluminum Company.Through a lot of laboratory tests,the type of flocculants, the proper amount of flocculants added, and the proper density of the waste flush fluid in flocculation have been defined, and the effect of the flocculation has been analyzed. All the achievements could be taken as the reference data in the relative research.