The utility model discloses a direct-current power distribution box, which relates to a communication power device. The direct-current power distribution box comprises a box body and a power module, wherein lead rails used for placing power modules are arranged in the box body. The direct-current power distribution box is characterized in that: the power module comprises at least two groups of direct current power input; each group of the power input is provided with a plurality of branches; each branch respectively corresponds to respective direct current power output; a safety device is arranged on each branch; the power module also comprises an alarm module; and the alarm module is connected with the safety device. When one safety device trips and interrupts (or more safety devices trip and interrupt simultaneously), visible and audible alarm signals can be sent out, wherein a visible alarm signal is that a red alarm lamp lights and an audible alarm signal is that a buzzer sounds, and simultaneously alarm input control signals are also sent to a common alarm of a computer room. The direct-current power distribution box has high working reliability, high fault bearing capacity and good alarm protection function.