The utility model discloses a cubical switchboard assembly for switching station, including the cabinet body, set up in internal two service entrance switchs, the section switch of cabinet and be used for preventing two service entrance switchs and the three switch of section switch closed locking circuit simultaneously, the locking circuit electricity is connected with the shutting function that is used for removing locking circuit and makes two service entrance switchs and the three switch of section switch closed lock -switch of separating simultaneously, separating the lock -switch through the closure and making two unblock contact nipple joints, realize locking circuit's shutting disabler, two service entrance switchs among the combined floodgate control circuit and the three switch of section switch can be realized closedly simultaneously, examine and repair conveniently that the switch is isochronous to fall the electricity operation, can reduce the operation degree of difficulty, increase the functional of cubical switchboard, have avoided the shortcoming brought through artificial short circuit at every turn, help improving power supply recovery rate, the resource of using manpower sparingly.