The utility model discloses a photosensitive sensor mounting base. Square seat, the bottom end face of the square base is provided with an open cavity. mounting holes for mounting sensors are formed in the other five surfaces except the bottom end surface; the mounting hole is communicated with the open cavity; the utility model has the advantages that the structure is simple; the solar panel frame has the advantages of being simple in structure, convenient to disassemble and assemble and the like, meanwhile, photosensitive sensors can be installed on the five faces of one installation base, all-around detection of solar illumination is achieved, the solar panel frame is particularly suitable for the field of illumination intensity detection and control of multiple solar panels, and the production and manufacturing cost of the solar panel frame can be effectively reduced.