COMMUNICATION POWER SUPPLY SYSTEM

A communication power supply system (10) includes an alternating current power distribution module (105), a rectifier module (104), a monitoring module (103), a direct current power distribution module (101), and a signal-driven collection board (102). The monitoring module (103) sends a control signal to the direct current power distribution module (101) by using the signal-driven collection board (102), where the control signal is used to control closing or opening of a circuit in the direct current power distribution module (101). The communication power supply system (10) uses the monitoring module (103) to control the direct current power distribution module (101), to control whether to power on loads connected to the direct current power distribution module (101). In this way, configuration of a contactor and a shunt in the communication power supply system (10) is omitted, thereby effectively reducing a volume of the communication power supply system (10) and reducing costs of the communication power supply system (10).