The utility model discloses a photovoltaic module installing support in the complementary power station of fishing light, including the tubular pile, in the pre -buried income earth in bottom of tubular pile, the parallel fixed a plurality of staple bolt in tubular pile upper end, the bottom of diagonal brace and upright vaulting pole is connected respectively at the staple bolt both ends, diagonal brace and the fixed girder in the top of founding the vaulting pole, fixed photovoltaic cell subassembly on the girder. Adopt the double embrace hoop to connect tubular pile and girder, has substituted the use of stand, prop immediately with double embrace hoop swing joint preceding prop immediately after, preceding bracing and back bracing angle regulation be nimble, can effectively adjust the vertical error of the tubular pile that brings in the pile stage, the regulating power is big, this device saves stand and embedded iron's weldment work in the installation to and bolt fixed connection, reduce photovoltaic power plant's fortune when having reduced the construction degree of difficulty and tieed up the expense, improved the economic benefits in power station.