To provide a distribution board with a monitoring function that outputs a current alarm by monitoring a current not only in a main circuit but also in each branch circuit even when it is impossible to secure a wide in-board space.

The distribution board with a monitoring function is composed of a main breaker 11, each branch breaker 13, and a monitoring device 16 provided with a current alarm output function for the main breaker. Each branch breaker 13 is a wiring circuit-breaker with a current alarm that has a built-in current alarm output function. Current alarm output of each branch breaker is input to the monitoring device 16 so as to allow a main circuit and each branch circuit to be monitored, respectively.