A rotation bracket, comprising: an L-shaped connecting rod, a rotation mechanism, and a stand base, wherein the L-shaped connecting rod comprises a vertical rod and a horizontal rod, the vertical rod is configured to connect to a communications device, the horizontal rod is a rotatable rod, and the horizontal rod is fastened to the rotation mechanism; the rotation mechanism is fastened to a top of the stand base, and the rotation mechanism is configured to drive the L-shaped connecting rod to rotate in a horizontal plane; and the stand base is configured to fixedly connect to an inner surface of a wall or to a ground, wherein the rotation mechanism comprises a support base, a support plate, and a rotation component; the horizontal rod passes through and is fastened to the support base, and the support base is fastened to the support plate; and the support plate is connected to the rotation component, and the rotation component is connected to the stand base, characterized in that the support plate comprises a first drawer plate, a second drawer plate, a telescopic member, and a first fastener; the first drawer plate comprises a first fastening member and a through hole; the second drawer plate comprises a second fastening member and a strip-shaped hole; the first drawer plate is fastened to the second drawer plate by the first fastener, and the first fastener passes through the through hole of the first drawer plate and the strip-shaped hole of the second drawer plate, so that the first drawer plate is in close contact with the second drawer plate; and the telescopic member is connected to the first fastening member and the second fastening member, and is configured to adjust relative positions of the first drawer plate and the second drawer plate in a horizontal direction. an L-shaped connecting rod, a rotation mechanism, and a stand base, wherein the L-shaped connecting rod comprises a vertical rod and a horizontal rod, the vertical rod is configured to connect to a communications device, the horizontal rod is a rotatable rod, and the horizontal rod is fastened to the rotation mechanism; the rotation mechanism is fastened to a top of the stand base, and the rotation mechanism is configured to drive the L-shaped connecting rod to rotate in a horizontal plane; and the stand base is configured to fixedly connect to an inner surface of a wall or to a ground, wherein the rotation mechanism comprises a support base, a support plate, and a rotation component; the horizontal rod passes through and is fastened to the support base, and the support base is fastened to the support plate; and the support plate is connected to the rotation component, and the rotation component is connected to the stand base, characterized in that the support plate comprises a first drawer plate, a second drawer plate, a telescopic member, and a first fastener; the first drawer plate comprises a first fastening member and a through hole; the second drawer plate comprises a second fastening member and a strip-shaped hole; the first drawer plate is fastened to the second drawer plate by the first fastener, and the first fastener passes through the through hole of the first drawer plate and the strip-shaped hole of the second drawer plate, so that the first drawer plate is in close contact with the second drawer plate; and the telescopic member is connected to the first fastening member and the second fastening member, and is configured to adjust relative positions of the first drawer plate and the second drawer plate in a horizontal direction.