PURPOSE: A solar power generation system is provided to reduce costs for installation costs by the installation of a heat collector and a reflector on a bridge. CONSTITUTION: A solar power generation system is installed at the center of a tower(210) and a bridge(200). A reflective body(240) is formed in a support reflecting unit(230A,230B) connected and installed in a bridge post supporting a bridge. A tracker is formed for tracing the location change of the sun in the reflector installed in a support reflecting unit. The tracker is installed in the support reflecting body.
