Provided is a playback control system, including a first playback control device, a second playback control device, a first power supply circuit, a second power supply circuit, and a power supply. The first power supply circuit is configured to supply power to the first playback control device using a first utility power. The second power supply circuit is configured to supply power to the second playback control device using the first utility power. The power supply is configured to supply power to a first target playback control device in response to a power failure in a first target power supply circuit. The first target power supply circuit is the first power supply circuit. The first target playback control device is the first playback control device. Alternatively, the first target power supply circuit is the second power supply circuit. The first target playback control device is the second playback control device.