The present invention relates to an automatic working system, including: a self-moving device, configured to move and work in a working area, where the self-moving device includes a housing, a moving module, and a control module, and the control module controls the moving module to actuate the self-moving device to move; the self-moving device includes an energy consumption device, where the energy consumption device includes a device that consumes energy for actuating the self-moving device to move and work; and the self-moving device further includes: a photoelectric conversion unit, where the photoelectric conversion unit receives optical energy and converts the received optical energy into electric energy; and an energy storage unit, configured to store the electric energy obtained by conversion by the photoelectric conversion unit, where effective working electric energy that is received by the energy consumption device from the photoelectric conversion unit and that is converted by the photoelectric conversion unit is greater than or equal to energy consumed by the energy consumption device to actuate the self-moving device to move and work.