An emergency opening device for an aircraft door provided with an opening mechanism, comprising: - means for actuating the opening mechanism, that can be switched between a passive state and an active state of activation of the opening mechanism, and comprising: a tubular operating member provided with a first end linking with the door, and a locking second end; elastic compression means disposed between a fixed stop element and the operating member; a retaining member for the locking second end, that can move between a closed position of locking of the locking second end, in a position of the operating member corresponding to the passive state of the actuation means in which elastic means are kept compressed, and an open position of releasing of the locking second end allowing the displacement of the operating member on an axis of displacement to a position corresponding to the active state of the actuation means, under the effect of the effort resulting from the expansion of the elastic means; - activation means for the actuation means suitable for driving the opening of the retaining member; characterized in that: - the operating member comprises a first end element and a second end element that can move in translation with respect to one another on the axis of displacement, the first end of the operating member being situated on the first end element and the locking second end of the operating member being situated on the second end element; - the first end element comprises a cylindrical retractable rotary stop, that can move between: a first angular position of transmission in which the rotary stop has a driving surface facing the second end element, the second end element then being designed to drive the first end element in translation on the axis of displacement, upon the activation of the actuation means; and a second angular position of release in which the rotary stop has a section contained within the outline of a release opening formed in the second end element, the first end element being then free to slide in translation on the axis of displacement with respect to the second end element. - means for actuating the opening mechanism, that can be switched between a passive state and an active state of activation of the opening mechanism, and comprising: a tubular operating member provided with a first end linking with the door, and a locking second end; elastic compression means disposed between a fixed stop element and the operating member; a retaining member for the locking second end, that can move between a closed position of locking of the locking second end, in a position of the operating member corresponding to the passive state of the actuation means in which elastic means are kept compressed, and an open position of releasing of the locking second end allowing the displacement of the operating member on an axis of displacement to a position corresponding to the active state of the actuation means, under the effect of the effort resulting from the expansion of the elastic means; - activation means for the actuation means suitable for driving the opening of the retaining member; - the operating member comprises a first end element and a second end element that can move in translation with respect to one another on the axis of displacement, the first end of the operating member being situated on the first end element and the locking second end of the operating member being situated on the second end element; - the first end element comprises a cylindrical retractable rotary stop, that can move between: a first angular position of transmission in which the rotary stop has a driving surface facing the second end element, the second end element then being designed to drive the first end element in translation on the axis of displacement, upon the activation of the actuation means; and a second angular position of release in which the rotary stop has a section contained within the outline of a release opening formed in the second end element, the first end element being then free to slide in translation on the axis of displacement with respect to the second end element.