The invention belongs to the technical field of washing machine components, and particularly relates to a washing machine and a dispenser component thereof. The dispenser component includes a dispensing box and a water guide box disposed at the bottom of the dispensing box, the dispenser component further includes a barrier part between the bottom of the dispensing box and the water guide box, andthe barrier part is configured to prevent mixed liquid containing detergent additives from partially flowing back into a gap between the outer side of the bottom of the dispensing box and the inner side of the bottom of the water guide box when the mixed liquid flows into the washing machine. Further, the outer side of the bottom of the dispensing box and the inner side of the bottom of the waterguide box are arranged as conformal bonding structures, so that the gap between the outer side of the bottom of the dispensing box and the inner side of the bottom of the water guide box is reduced.According to the dispenser component, the mixed liquid is prevented from flowing into the gap, and the gas is reduced as much as possible, so that backflow of the mixed liquid to the gap between the outer side of the bottom of the dispensing box and the inner side of the bottom of the water guide box is effectively prevented, and a phenomenon of detergent residual in the gap is avoided.