The utility model discloses a novel solar energy street lighting, it relates to the solar energy application technology field. It includes solar cell, the MPPT controller, nickel -hydrogen battery group, auxiliary electrical power source, the LED array, detection and AD converting circuit and singlechip, solar cell is connected with the MPPT controller, the MPPT controller meets nickel -hydrogen battery group respectively, auxiliary electrical power source, nickel -hydrogen battery group is connected with the LED array, solar batteries, nickel -hydrogen battery group all connects to be detected and AD converting circuit, detection and AD converting circuit connect the singlechip, the singlechip still respectively with the MPPT controller, nickel -hydrogen battery group, detect and the AD converting circuit connection. The utility model discloses can realize the automatically regulated of street lamp luminance and can reach the energy can be saved's purpose, reduce staff's maintenance volume, improve the reliability of operation, the practicality is strong, easily uses widely.