A network and power sharing device is for being connected to first optical network equipment and second optical network equipment that are built in an optical network, so as to establish power supply architecture for the optical network. The network and power sharing device includes: a power input port and a first power port wherein the first power port is connected to the first optical network equipment; and a power control unit received in the casing, for detecting if the power input port and the first power port output power signals and for controlling a power switch unit to switch power supply transmission paths of the power input port and first power port.

A network and power sharing device is for being connected to first optical network equipment and second optical network equipment that are built in an optical network, so as to establish power supply architecture for the optical network. The network and power sharing device includes: a power input port and a first power port wherein the first power port is connected to the first optical network equipment; and a power control unit received in the casing, for detecting if the power input port and the first power port output power signals and for controlling a power switch unit to switch power supply transmission paths of the power input port and first power port.