Abstract: With the increasing market share of drum washing machine, consumers’ requirements for the quality are gradually increasing. And because consumers’ awareness of environmental protection has been strengthened, how to improve the basic performance of drum washing machine without increasing consumption (power, water and washing time ) has become the research direction of major companies. As one of the most important performance of drum washing machine, this paper will study how to improve the washing rate by supervision technology on the basis of not increasing the recording time, power and water consumption.

Key words: Washing powder pre-dredging device, Circulating forest, Strong mixed