Photovoltaic support and photovoltaic assembly structure

The utility model relates to the field of photovoltaic technology, and discloses a photovoltaic support which can be fixed on an oblique beam and comprises a purline and a fixing piece. The number of the purlines is at least two, each purline is provided with an inserting groove, and the inserting grooves can be used for containing photovoltaic modules. The purline is further provided with a fixing hole, and the fixing hole penetrates through the purline and avoids the inserting groove. During installation, the purline can be pre-installed on the oblique beam by utilizing the matching of the fixing piece and the fixing hole, and then the two ends of the photovoltaic module are respectively inserted into the two inserting grooves and the fixing piece is tightened, so that the relative fixation of the purline and the oblique beam is realized, the purline is pressed by the fixing piece, and the photovoltaic module can be fixed on the oblique beam in the thickness direction of the photovoltaic module. The two opp