The invention discloses a hand washing mechanism for a restaurant and a supermarket. The hand washing mechanism comprises a wash basin device and a drying device. The drying device and the wash basindevice are fixedly connected; the wash basin device comprises a wash basin, a water stop block, a lavabo, a washing cosmetic mirror frame and a cosmetic mirror; the drying device comprises a hot-blastair output drying plate, a hot-blast air conveyor and a hot-blast air conveying pipe, the hot-blast air output drying plate is fixed to the washing cosmetic mirror frame, and the hot-blast air conveyor is fixed to the wash basin; a plurality of hot-blast air output through holes are formed in the hot-blast air output drying plate, and the hot-blast air output through holes are formed towards thecosmetic mirror. According to the hand washing mechanism for the restaurant and the supermarket, the hot-blast air output drying plate, the hot-blast air conveyor and the hot-blast air conveying pipeare arranged inside the drying device, generated hot-blast air can dry mist on the cosmetic mirror, and the mist is removed; the water stop block is further arranged and has the certain height, splashed water drops can be stopped, and the phenomenon that a garment of a user is splashed is avoided.