The invention discloses a no-arc cut-off hybrid direct-current circuit breaker. The no-arc cut-off hybrid direct-current circuit breaker comprises a high-speed vacuum switch, an LC forced branch circuit of a turn-off device with a power electronic gate, a voltage-sharing capacitor, an over-voltage limiting circuit and a control system, wherein the high-speed vacuum switch VB, the LC forced branch circuit and the over-voltage limiting circuit are connected in parallel. The turn-off device of the LC forced branch circuit is controlled to be conducted and turned off so that the no-arc opening of the high-speed vacuum switch can be realized, and electric current in the high-speed vacuum switch limits di/dt in a smaller range within a short period of time before zero passage, thus the problem that electric arcs ablate switch contacts is eliminated in the cut-off process of the contacts, simultaneously, the recovery character of a medium between the contacts is good under the no-arc breaking condition, and the over-voltage is low, and the break-time is short in the breaking process under the low di/dt condition.