Ice maker and cleaning method thereof

The invention relates to the technical field of ice making, and discloses an ice maker, which comprises an ice storage box, an ice storage box and an ice storage box, the ice outlet assembly is arranged on the outer side of the ice storage box, the ice outlet assembly comprises an ice outlet, the ice outlet is communicated with the containing cavity, and the ice outlet assembly has a first state that the ice outlet is closed and a second state that the ice outlet is opened; and the ultrasonic cleaning device is fixedly connected with the ice storage box and suitable for enabling the ice outlet assembly to be in the first state and enabling the ultrasonic cleaning device to work when the ice storage box needs to be cleaned. By arranging the ultrasonic cleaning device, when the ice storage box needs to be cleaned, the ice outlet assembly closes the ice outlet so that the ice storage box can be an approximately closed container, cleaning liquid can be injected into the ice storage box, the ultrasonic cleaning de