Stable support of photovoltaic bottom plate

The utility model relates to the technical field of photovoltaic bottom plates, and discloses a stable support of a photovoltaic bottom plate, which comprises a positioning plate, a first buckle and a second buckle are respectively and fixedly assembled at the top of the positioning plate, a connecting plate is fixedly assembled on the inner wall of the positioning plate, a hook body is slidably connected to the outer side of the connecting plate, and the hook body is fixedly assembled on the inner wall of the positioning plate. An observation opening is formed in the top of the hook body. Through cooperative use of a positioning plate, a first buckle and a second buckle, and cooperative use of a mounting plate, a through hole and a screw, the mounting stability can be ensured when the device is mounted, and the problem that the photovoltaic bottom plate is easy to shake after being mounted due to insufficient mounting stability is avoided; therefore, the problem that the photovoltaic bottom plate is exposed