Automobile rearview mirror and using method thereof

The invention discloses an automobile rearview mirror and a using method thereof. The automobile rearview mirror comprises a housing, one end of the housing is fixedly provided with a connecting rod,the side, far away from the housing, of the connecting rod is provided with a transition rod, the transition rod is hinged to the connecting rod, the connecting rod can rotate around the connecting position of the transition rod and the connecting rod, the side, far away from the connecting rod, of the transition rod is provided with a fixing base, a first hinge shaft is arranged between the fixing base and the transition rod, the first hinge shaft is fixedly connected with the transition rod, the first hinge shaft is rotationally connected with the fixing base, an adjusting device is fixedlyarranged on the side, close to the housing, of the fixing base, the adjusting device comprises a second cavity, a supporting rod is arranged in the second cavity, one side of the supporting rod is provided with an adjusting ro