The invention provides a washing box assembly and a washing machine. The washing box assembly is used for the washing machine. The washing box assembly comprises a water inlet box, a washing box, a putting box and a feeding assembly, wherein the water inlet box is provided with a water inlet and a water outlet, the washing box is located below the water inlet box, the putting box is slidably arranged on the water inlet box and is located at the side close to the washing box, the feeding assembly is provided with a first feeding inlet, a second feeding inlet, a first discharging outlet and a second discharging outlet, the first feeding inlet is connected with the first containing cavity, the second feeding inlet is connected with the second containing cavity, and the first discharging outlet and the second discharging outlet are connected with the water inlet box separately. The putting box is slidably arranged on the water inlet box, a detergent can be conveniently put into the puttingbox so that the purpose of adding the detergent into the washing box is achieved; furthermore, the deterrent in the first containing cavity and the second containing cavity can enter the water inletbox through the feeding assembly, the detergent, water and objects to be cleaned inside the washing machine can be sufficiently fused, and the cleaning performance of the washing machine is improved.