Adjustable solar panel mounting bracket

An adjustable solar panel mounting bracket relates to the technical field of solar panel mounting brackets, and can basically meet the mounting and using requirements of solar panel brackets within a certain range. The adjustable solar panel installation support comprises a first cross rod, a second cross rod, a sleeve rod and an adjusting rod, the sleeve rod and the adjusting rod are located between the first cross rod and the second cross rod and connected in sequence, and the adjusting rod can be suitable for different solar panel widths through stretching and retracting relative to the sleeve rod. The two ends of the first cross rod and the second cross rod are connected with plate thickness adjusting buckles respectively, and the plate thickness adjusting buckles can be suitable for different solar panel thicknesses. The main body piece is connected with the sleeve rod through an adjusting support, the mounting base is connected with the main body piece, and reinforcing ribs are connected between the mou