Abstract: Support structure for solar panels, of the type that supports at least a polar rotation axis for at least a solar panel, the mounting of the structure including two parallel support profiles. It is characterised by the fact that the above-mentioned polar rotation axis is assembled in a flip-top frame around an axis of rotation that joins the above-mentioned parallel support profiles. Therefore, in folded position the above-mentioned polar rotation axis stays in the plane determined by said parallel support profiles with their ends contiguous to each of the profiles. Consequently, in lifted position the above-mentioned polar rotation axis remains inclined with regard to the horizontal plane and in a plane perpendicular to the longitudinal axis of the parallel support profiles. It all makes the invention particularly light and of easy and quick assembly, especially adapted for its installation on building roofs.