A central office equipment, comprising: a current equalization module, an energy storage module and a power supply detection module, the current equalization module being provided with a plurality of power supply ports, and a central office Powered Device, PD, interface module and a Direct-Current to Direct-Current, DC/DC, module being sequentially connected between a user terminal Power Sourcing Equipment, PSE, and each of the plurality of power supply port respectively, wherein the current equalization module is configured to evenly distribute a source power, from each of PSEs which are configured for reverse power supply, required by and to the central office equipment; the power supply detection module is connected to the energy storage module, each of PD interface modules and each of DC/DC modules, respectively; and the power supply detection module is configured to monitor, in real time, operation statuses of each of the PD interface modules and each of the DC/DC modules, and output an operation indication signal to the energy storage module when it is monitored that the central office equipment is in a single-port power supply state or a power-down state, the operation indication signal comprises a first operation indication signal when it is monitored that the central office equipment is in a single-port power supply state and a second operation indication signal when it is monitored that the central office equipment is in a power-down state; and the energy storage module is configured to control an output voltage of the energy storage module, according to the first operation indication signal or the second operation indication signal, to supply power to the central office equipment so as to prevent the central office equipment from rebooting, wherein the central office equipment further comprises: a Central Processing Unit CPU respectively connected to the energy storage module and the power supply detection module, characterized in that, the power supply detection module is further configured to output the first operation indication signal to the CPU when it is monitored that the central office equipment is in the single-port power supply state and the second operation indication signal to the CPU when it is monitored that the central office equipment is in the power-down state; the CPU is configured to perform a power consumption reduction processing on the central office equipment according to the first operation indication signal, and output a recovery signal to the energy storage module after the power consumption reduction processing is completed; and the energy storage module is configured to control the output voltage of the energy storage module, according to the recovery signal, to prohibit power supply to the central office equipment; the energy storage module is further configured to output voltage to the central office equipment, and the CPU is configured to report a Dying Gasp to an upper level equipment and to save relevant information urgently, according to the second operation indication signal. wherein the current equalization module is configured to evenly distribute a source power, from each of PSEs which are configured for reverse power supply, required by and to the central office equipment; the power supply detection module is connected to the energy storage module, each of PD interface modules and each of DC/DC modules, respectively; and the power supply detection module is configured to monitor, in real time, operation statuses of each of the PD interface modules and each of the DC/DC modules, and output an operation indication signal to the energy storage module when it is monitored that the central office equipment is in a single-port power supply state or a power-down state, the operation indication signal comprises a first operation indication signal when it is monitored that the central office equipment is in a single-port power supply state and a second operation indication signal when it is monitored that the central office equipment is in a power-down state; and the energy storage module is configured to control an output voltage of the energy storage module, according to the first operation indication signal or the second operation indication signal, to supply power to the central office equipment so as to prevent the central office equipment from rebooting, wherein the central office equipment further comprises: a Central Processing Unit CPU respectively connected to the energy storage module and the power supply detection module, characterized in that, the power supply detection module is further configured to output the first operation indication signal to the CPU when it is monitored that the central office equipment is in the single-port power supply state and the second operation indication signal to the CPU when it is monitored that the central office equipment is in the power-down state; the CPU is configured to perform a power consumption reduction processing on the central office equipment according to the first operation indication signal, and output a recovery signal to the energy storage module after the power consumption reduction processing is completed; and the energy storage module is configured to control the output voltage of the energy storage module, according to the recovery signal, to prohibit power supply to the central office equipment; the energy storage module is further configured to output voltage to the central office equipment, and the CPU is configured to report a Dying Gasp to an upper level equipment and to save relevant information urgently, according to the second operation indication signal.