The invention discloses a plate and chopstick integrated cleaning method for a dining hall. The method includes the steps that 1, a plate and chopstick integrated cleaning machine is designed, whereinthe plate and chopstick integrated cleaning machine is composed of a plate cleaning part and a chopstick cleaning part, the chopstick cleaning part comprises a chopstick collecting box and a chopstick classifying base, and the outlet end at the bottom of a chopstick cleaning box is provided with a lifting sealing plate in a sliding fit mode; 2, after having a dinner, dinners pour out residues inplates completely and put the plates in a plate hanging basket at the lowermost position of a plate inlet support; 3, when a flexible tooth conveying chain moves rightwards carrying the plate hangingbasket, the plate hanging basket descends into a cleaning tank when passing through the cleaning tank; 4, when the plate hanging basket and the plates are conveyed to a plate outlet support, a position sensor is triggered. According to the method, the automatic plate and chopstick integrated cleaning machine capable of cleaning plates and chopsticks is designed, and mechanization is basically achieved.