A communication power supply system , wherein the communication power supply system comprises an alternating current power distribution module , a rectifier module , a monitoring module , a direct current power distribution module , and a signal-driven collection board ; the signal-driven collection board comprises at least one access port, the signal-driven collection board is connected to the direct current power distribution module through a plug-in connection to the at least one access port, and the signal-driven collection board is connected to the monitoring module so that the direct current power distribution module is connected to the monitoring module through the signal-driven collection board , and the direct current power distribution module is connected to the rectifier module through a plug-in connection to a power busbar, the rectifier module is connected to the alternating current power distribution module , and the rectifier module is configured to rectify an alternating current output by the alternating current power distribution module and to output a direct current to the monitoring module , to the signal-driven collection board through the monitoring module , and to the direct current power distribution module ; and the monitoring module is configured to obtain a current detection signal of the direct current power distribution module through the signal-driven collection board , wherein the current detection signal indicates an information about a load connected to the direct current power distribution module or information about the direct current power distribution module ; and wherein the monitoring module is further configured to send a control signal to the direct current power distribution module through the signal-driven collection board , wherein the control signal is used to control closing or opening of a circuit in the direct current power distribution module . the signal-driven collection board comprises at least one access port, the signal-driven collection board is connected to the direct current power distribution module through a plug-in connection to the at least one access port, and the signal-driven collection board is connected to the monitoring module so that the direct current power distribution module is connected to the monitoring module through the signal-driven collection board , and the direct current power distribution module is connected to the rectifier module through a plug-in connection to a power busbar, the rectifier module is connected to the alternating current power distribution module , and the rectifier module is configured to rectify an alternating current output by the alternating current power distribution module and to output a direct current to the monitoring module , to the signal-driven collection board through the monitoring module , and to the direct current power distribution module ; and the monitoring module is configured to obtain a current detection signal of the direct current power distribution module through the signal-driven collection board , wherein the current detection signal indicates an information about a load connected to the direct current power distribution module or information about the direct current power distribution module ; and wherein the monitoring module is further configured to send a control signal to the direct current power distribution module through the signal-driven collection board , wherein the control signal is used to control closing or opening of a circuit in the direct current power distribution module . <EOS>