The present invention relates to the field of tableware cleaning, in particular to an automatic dish washing machine, comprising a first conveyor belt, a cleaning device, a rinsing device, an air drying device, a second conveyor belt and a third conveyor belt, a cleaning device, a rinsing device, an air drying device, a first The second conveyor belt and the third conveyor belt are arranged at intervals along the conveying direction of the first conveyor belt, the second conveyor belt is located in the cleaning device and the washing device, the third conveyor belt is located at the end of the second conveyor belt, and the air-drying device is fixedly connected to both sides of the third conveyor belt. There is a positioning jig on the top of the first conveyor belt. In the working state, the first conveyor belt will transfer the positioning jig to the second conveyor belt. After the cleaning device and the washing device clean the dishes in the positioning jig in turn, the second conveyor will position The jig moves to the third conveyor belt, and the air-drying device air-dries the dishes in the positioning jig. The invention avoids soaking and cleaning the dishes, and the sewage is difficult to circulate in time, which leads to slow cleaning of the dishes, and also reduces the waste of water resources.