Detergent putting device and clothes treatment equipment

The invention discloses a detergent putting device and clothes processing equipment, the detergent putting device comprises a water box and a detergent box, the water box comprises a water box body and a water box cover body, the water box body and the water box cover body define a water box cavity, a water injection cavity is formed in the water box cover body, the water injection cavity is connected with an external water inlet pipe, and the detergent box is arranged in the water box cavity; the detergent box is used for containing detergent, water is injected into the detergent box through the water injection cavity, a siphon opening is formed in the position, close to the rear side, in the detergent box, a siphon cap is arranged at the siphon opening, and liquid in the detergent box flows into the water box cavity through the siphon opening. The water retaining rib is arranged at the bottom of the inner side of the detergent box and located between the siphon opening and the left side wall and/or the righ