The utility model relates to a cubical switchboard partial discharge real -time monitoring system belongs to power monitoring equipment technical field. Technical scheme is: preceding cabinet middle part monitoring point (1), preceding cabinet bottom monitoring point (2), integrated automation device (6) set up in the front on cabinet (7), back cabinet bottom monitoring point (3), back cabinet middle part monitoring point (4), after cashier's office in a shop portion monitoring point (5) set up on back cabinet (8), preceding cabinet middle part monitoring point (1), preceding cabinet bottom monitoring point (2), back cabinet bottom monitoring point (3), back cabinet middle part monitoring point (4), after cashier's office in a shop the portion monitoring point (5) interconnect with integrated automation device (6) respectively, monitored control system (9) interconnect with the integrated automation device. The utility model discloses can real -time supervision the partial discharge condition of every cubical switchboard, reduce non - failure interruption in a large number and overhaul, save a large amount of manpower and materials, not only avoided that fortune dimension personnel sexual periodicity is artifical to be detected simultaneously, guaranteed the real -time of cubical switchboard state monitoring moreover.