A power supply network monitoring system for solar street lamps disclosed by the invention belongs to the field of solar energy technology. The monitoring system comprises a monitoring subsystem, a computer subsystem, a software program subsystem, a wireless communication subsystem, a network management subsystem and a solar generating, storing, supplying and controlling subsystem which is in wide-area cluster-type distribution and is composed of N solar photovoltaic panel generating, storing and supplying units and control units of the N solar photovoltaic panel generating, storing and supplying units; each solar photovoltaic panel generating, storing and supply unit and each solar street lamp thereof can be automatically collected, monitored and run on line by a network monitoring module; the monitoring module can realize network communication, contact and exchange of monitored actual condition information through wireless communication and each monitoring point and monitoring center and the like of the solar street lamp power supply network monitoring system. The technical scheme provided by the invention integrates modern technologies such as solar energy, computer, microelectronics and networking and the like into a whole, has reasonable design concept and complete technical configuration, is an innovative achievement in the solar energy technical field and can make a contribution to low carbon, environmental protection and green economy development, thus the monitoring system is worth applying and popularizing.