Supporting seat assembly of clothes processing device and clothes processing device

The supporting seat assembly of the clothes processing device comprises a supporting seat, a filter screen and a cleaning spray head, the supporting seat is provided with a ventilation opening and an installation wall located above the ventilation opening, the filter screen covers the ventilation opening and is connected with the supporting seat, and the cleaning spray head is arranged on the installation wall. A plurality of water spraying holes are defined by the cleaning nozzle or between the cleaning nozzle and the mounting wall, and each water spraying hole is arranged downwards so as to spray water towards the filter screen. According to the supporting base assembly of the clothes processing device, the filter screen can be automatically cleaned through the water spraying holes, meanwhile, the forming difficulty of the water spraying holes can be reduced, the forming quality is guaranteed, and therefore the cleaning quality of the cleaning spray head is improved, that is, the supporting base assembly ca