The invention relates to an automobile rear-view mirror with an adjustable angle. The automobile rear-view mirror with the adjustable angle comprises a rear-view mirror sheet and a rear-view mirror shell which coats the external side of the rear-view mirror sheet; an angle sensor is mounted at one end, close to an automobile main body, of the rear-view mirror shell; the angle sensor is fixedly connected with a connecting pipe; a mounting seat for fixing the connecting pipe on the automobile main body is arranged at the tail end of the connecting pipe; and a cleaning device for wiping the rear-view mirror sheet is fixedly arranged above the rear-view mirror shell. The automobile rear-view mirror with the adjustable angle has the advantage that a driver accurately knows the angle of the rear-view mirror to conveniently perform accurate angle adjustment because the design senses the variation of the angle of the rear-view mirror shell through the angle sensor. As the cleaning device for wiping the rear-view mirror sheet is fixedly arranged above the rear-view mirror shell, the rear-view mirror sheet can be more rapidly cleaned by the cleaning device when the rear-view mirror sheet cannot accurately present vehicle running situations due to uncleanness; therefore, the operation is simple and convenient.