The invention discloses a washable garbage bin capable of collecting and cleaning vomits. The washable garbage bin comprises a garbage bin body; the garbage bin body is provided with a collecting mechanism; the collecting mechanism is provided with a containing platform, a hemispherical groove, a handrail, a non-slip mat, a water outlet, a collecting box, a support platform, a filter box, a waterdrainage hole, hooks, a nylon filter bag, a collecting flexible pipe, and a cleaning mechanism; the garbage bin body is internally provided with a sewage collecting and processing mechanism; the sewage collecting and processing mechanism comprises a water outlet, a purification water tank, a water inlet, a water suction pump, a water-pumping pipe, a water inlet pipe, a water storage tank, a support leg, an activated carbon adsorption box, a connection water pipe, a water guiding pipe, and a drainage mechanism; the garbage bin body is provided with a cleaning mechanism; the cleaning mechanism comprises a faucet, an electromagnetic valve, an infrared distancer, a spray pump, a fixed bracket, a spray pipe, and a water injection nozzle; and one side of the upper surface of the garbage bin bodyis provided with a controller. The washable garbage bin capable of collecting and cleaning the vomits has the beneficial effects of simple structure and high practicability.