A semitrailer provided with a multi-view right side rearview mirror comprises the multi-view right side rearview mirror and is characterized in that the multi-view right side rearview mirror comprises a supporting frame, a rear observation mirror body, a plurality of sliding connecting blocks and a front observation mirror body; the supporting frame is installed on a semitrailer body; the rear observation mirror body is installed on the supporting frame; and each sliding connecting block is installed on the back portion of the rear observation mirror body and connected with the front observation mirror body in a hinged mode. The front observation mirror body is designed so that a driver can well observe the situation in front of the semitrailer before the semitrailer is started, and potential safety hazards are eliminated; the front observation mirror body can be unfolded and folded, so that the occupied space is reduced while attractiveness is guaranteed, the wind resistance in the traveling process of the semitrailer is reduced, and oil consumption is reduced; and the multi-view right side rearview mirror is simple in structure, easy to implement and low in cost, and has good practicability.