The solar street lamp adopts high-efficient single crystal (multi-crystal) to supply power, adopts the non-maintaining sealing type battery to store the electric energy, uses the high-efficient electricity-saving lamp to illumination, and adopts advanced charge and discharge and lighting control circuit. It has property to be reliable giving out light with high efficiency, luminance heavy, convenient install to lay the cable electric wire installation, no need to AC and electric cost. DC is adopted to supply power, which is safe and reliable, energy-conservation, economy, environmental protection. ( it is practical according to disposing and the different in type, charge can spend 3-7 day one day) have long service life (can spend 15-20 year solar cell, can spend 5-7 year battery). It is becoming a rising star in developing direction of lighting lamps and lanterns in the future. The solar energy street lamp can be applied to extensively: Urban road, expressway, scenic spot, etc.