The invention discloses a photoelectric conversion combination, a solar cell and power supply equipment, and belongs to the field of cells. The photoelectric conversion combination comprises a back electrode, a passivation layer, a silicon base material, an antireflection adjusting layer, graphene and a surface electrode. The back electrode, the passivation layer, the silicon base material, the antireflection adjusting layer, the graphene and the surface electrode are sequentially arranged. The surface electrode is formed on the perforated and exposed silicon base material, is combined with the graphene and is in ohmic contact with the silicon base material.