An emergency opening device for an aircraft door having an opening mechanism, comprising means for actuating the opening mechanism, wherein these means can be switched between a passive state and an active state of activation of said opening mechanism, and means (27, 28) for activating the actuating means, said emergency opening device being characterized in that: - the actuating means comprise: ▪ a movable operating member (21-23, 35) having an end-piece, for connecting to the opening mechanism of the door, and at the opposite end a tubular segment termed a rearming segment, ▪ elastic compression means arranged between a stationary end-stop element and the connecting end-piece of the operating member (21-23, 35), ▪ a member for retaining the rearming segment of the operating member (21-23, 35) comprising at least two jaws (26a, 26b) which can be moved between a closed position locking the rearming segment, the operating member (21-23, 35) being in a position which corresponds to the passive state of the actuation means in which the elastic means are held in a compressed state, and an open position freeing said rearming segment, allowing the operating member (21-23, 35) to be moved, by the force resulting from the expansion of the elastic means, toward a position corresponding to the active state of the actuation means, - the activation means (27, 28) are designed to drive the opening of the jaws (26a, 26b) of the retaining member. - the actuating means comprise: ▪ a movable operating member (21-23, 35) having an end-piece, for connecting to the opening mechanism of the door, and at the opposite end a tubular segment termed a rearming segment, ▪ elastic compression means arranged between a stationary end-stop element and the connecting end-piece of the operating member (21-23, 35), ▪ a member for retaining the rearming segment of the operating member (21-23, 35) comprising at least two jaws (26a, 26b) which can be moved between a closed position locking the rearming segment, the operating member (21-23, 35) being in a position which corresponds to the passive state of the actuation means in which the elastic means are held in a compressed state, and an open position freeing said rearming segment, allowing the operating member (21-23, 35) to be moved, by the force resulting from the expansion of the elastic means, toward a position corresponding to the active state of the actuation means, ▪ a movable operating member (21-23, 35) having an end-piece, for connecting to the opening mechanism of the door, and at the opposite end a tubular segment termed a rearming segment, ▪ elastic compression means arranged between a stationary end-stop element and the connecting end-piece of the operating member (21-23, 35), ▪ a member for retaining the rearming segment of the operating member (21-23, 35) comprising at least two jaws (26a, 26b) which can be moved between a closed position locking the rearming segment, the operating member (21-23, 35) being in a position which corresponds to the passive state of the actuation means in which the elastic means are held in a compressed state, and an open position freeing said rearming segment, allowing the operating member (21-23, 35) to be moved, by the force resulting from the expansion of the elastic means, toward a position corresponding to the active state of the actuation means, - the activation means (27, 28) are designed to drive the opening of the jaws (26a, 26b) of the retaining member.