The present invention provides a telecommunications equipment, a power supply system, and a power supply implementation method. The telecommunications equipment includes at least one fixed power distribution unit, at least one fixed configuration unit, at least one variable power supply unit, and at least one variable configuration unit. The fixed power distribution unit is associated with the fixed configuration unit located in a same section. An input end of each fixed configuration unit of the at least one fixed configuration unit is connected to an output end of a corresponding fixed power distribution unit. Output ends of all the variable power supply units are connected, and an input end of each variable configuration unit of the at least one variable configuration unit is connected to an output end of the variable power supply unit.