The invention discloses a contact switching device for an intelligent distribution network circuit breaker. The contact switching device comprises a knob switch and a switch contact terminal strip, wherein six wiring terminals are arranged in the knob switch, an intelligent distribution network circuit breaker normally opened contact K1 is connected between the first wiring terminal T0 and the switch contact terminal strip, an intelligent distribution network circuit breaker normally closed contact K2 is connected between the second wiring terminal T1 and the switch contact terminal strip, the third wiring terminal COM is directly connected with the switch contact terminal strip, the fourth wiring terminal TA, the fifth wiring terminal TB and the sixth wiring terminal TG are further arranged in the knob switch, and the three terminals are respectively connected with different contact loops of a power distribution terminal through conductive plugging-connection devices. When the contact switching device is operated, a switch casing is not required to be dismantled for terminal strip rerouting, the knob switch is directly turned to achieve switching, the requirements of a technical protocol are quickly met, the system integration and test time and a project period are shortened, and the power supply reliability of an intelligent distribution network is ensured.