The invention discloses a 
wind power and 
optical power complementary street lamp power supply 
system. The 
system comprises a controller circuit, a storage battery protection circuit, a storage battery circuit, a street lamp circuit, a 
solar energy storage module and a wind 
energy storage module. The input end of the controller circuit is connected with a 
light intensity acquisition circuit, a humiture acquisition circuit and a 
wind speed acquisition circuit, the output end of the controller circuit is connected with a street lamp circuit, the 
solar energy storage module comprises a photovoltaic array, a first 
voltage current acquisition circuit, a first DC / DC change circuit and a first 
triode switch circuit, and the wind 
energy storage module comprises an 
impeller, a second 
voltage current acquisition circuit, a 
wind power generation circuit, a power conversion circuit, a second DC / DC change circuit and a second 
triode switch circuit. The 
system provided by the invention has the following advantages: the structure is simple, the design is reasonable, the anti-interference performance is high, a storage battery can be effectively protected, the efficiency of converting 
solar energy and wind energy into 
electric energy is high, the application effect is good, and the practicality is high.