The invention relates to an automobile cleaning brush. The brush comprises a handle and a cleaning head which are connected with each other and further comprises a protection sleeve, and one end of the protection sleeve is fixedly connected between the handle and the cleaning head; when a cleaning rod is in a standing state, the protection sleeve wraps the cleaning head, dust is prevented from being attached to the cleaning head, when the cleaning rod is in a working state, the protection sleeve wraps the handle and an arm which takes the handle, and the arm of the user and the handle are prevented from being contaminated by the dust.