Washing machine and clothes washing method thereof

The invention relates to a washing machine and a clothes washing method thereof. The washing machine comprises a stain detection system used for detecting the types of stains on clothes to be washed, the washing machine executes different washing strategies according to the detected different stain types, and the stain detection system comprises a broadband light source scanning module which scans the clothes to be washed through broadband light and receives reflected light signals; and the stain detection system judges the stain type according to the optical signal. According to the washing machine and the method for washing the clothes, the stains on the clothes are detected through the broadband spectrum, the broadband spectrum obtained after the clothes are scanned is processed and recognized, different stain types can be accurately obtained, and the cleaning capacity of the washing machine for the clothes with the different stains is effectively improved. 本发明涉及洗衣机及其洗涤衣物的方法。所述洗衣机包括用于检测待洗衣物上的污渍类型的污渍检测系统，洗衣