The invention discloses an advertising board with an automatic cleaning function. The advertising board comprises a supporting column, a bottom plate is fixedly connected between the two sides of theinner wall of the supporting column, a first motor is fixedly connected to the top of the bottom plate, an output shaft of the first motor is fixedly connected with a rotating shaft through a coupler,the top end of the rotating shaft penetrates through the supporting column and extends to the outside of the supporting column, a fixing box is fixedly connected to the end, extending out of the supporting column, of the rotating shaft, a second motor is fixedly connected to one side of the inner wall of the fixing box, and an output shaft of the second motor is fixedly connected with a rotatingshaft through a coupler. The invention relates to the technical field of advertising boards. By means of the advertising board with the automatic cleaning function, the problem that a general advertising board does not have automatic dust removing and cleaning functions and affects appearance is solved, manual operation is reduced, huge inconvenience brought to people is avoided, a great deal of manpower is saved, and work loads of people are reduced.