Support for installing photovoltaic panel

The utility model relates to the technical field of solar photovoltaic power generation, and provides a photovoltaic panel installation support, which comprises a first support assembly, a second support assembly and a third support assembly, and is characterized in that the first support assembly, the second support assembly and the third support assembly are enclosed to form a triangle; the first supporting assembly comprises a first pipe and a first adjusting pipe, and the first adjusting pipe is arranged on the first pipe in a sliding mode. The second supporting assembly comprises a second pipe and a second adjusting pipe, the second pipe is connected with the first pipe, and the second adjusting pipe is arranged on the second pipe in a sliding mode; the third supporting assembly comprises a third pipe and a third adjusting pipe, the third pipe is detachably connected with the second adjusting pipe, and the third adjusting pipe is arranged on the third pipe in a sliding mode and detachably connected with