Abstract: In viewing of  the actual production process of rolling silicon steel on a single stand cold rolling mill of a steel plant, the information about the appearance characteristics and plate surface distribution of the emulsion stains on the relevant rolling mills were collected and analyzed, and the relevant theoretical analysis and actual field production were combined.Finally the relevant causes of the emulsion stains on the single stand cold rolling mill were determined and corresponding solutions were proposed, which provided effective reference for preventing the emulsion stains in the rolling process of other cold rolling products.

Key words: emulsion, stain, single stand cold rolling mill, silicon steel