The invention discloses a device for ground simulation of hanging and unfolding of a solar wing plate. The device comprises a horizontal hanging rod, a vertical supporting rod, a pull rod, an upper-end horizontal supporting seat, a lower-end horizontal supporting seat, a vertical fixed beam, a fixed beam limiting frame, a fixed beam moving frame, a first pull rod seat, a second pull rod seat, a first short sliding rail seat, a second short sliding rail seat, a rocker frame stabilizing sleeve and a short sliding rail. With the device, all that is required for guaranteeing of the vertical state of the supporting rod and the horizontal state of the hanging rod is to guarantee the absolute horizontal state of the horizontal supporting seats, whether the hanging rod is horizontal cannot be measured directly, and whether the supporting rod in the vertical state is absolutely vertical cannot be measured, so that the horizontal state of the hanging rod can be guaranteed by directly measuring whether the horizontal supporting seats are horizontal by a horizontal gauge; when the hanging rod is detected to be not in the horizontal state, the hanging rod is adjusted horizontally by adjusting the vertical fixed beam, and whether the hanging rod is adjusted to be horizontal can be judged accurately through a laser emitter in the adjusting process.