Detergent box for washing machine, washing machine and control method

The invention belongs to the field of clothes treatment equipment and particularly discloses a detergent box for a washing machine. The detergent box comprises a first cavity located at the front partof the detergent box and used for adding a detergent, and a second cavity located at the rear part of the detergent box and used for releasing the detergent, wherein the second cavity comprises a plurality of independent small cavities; each small cavity communicates with the first cavity separately; a siphon structure is arranged in each small cavity separately; and when the washing machine performs washing procedures, the plurality of small cavities release the detergent in sequence at different washing time. According to the detergent box disclosed by the invention, the effects of one-timerelease and segmented washing can be achieved, user operations are reduced and the upgrading and development requirements of low-end machines are met. 本发明属于衣物处理设备领域，具体公开了一种用于洗衣机的洗涤剂盒，包括：第一腔体，位于所述洗涤剂盒的前部，用来添加洗涤剂；第二腔体，位于所述洗涤剂盒的