The invention provides an emergency blood sample collection box capable of being repeatedly used. The emergency blood sample collection box comprises a box body, wherein the box body is internally provided with a working cavity with a forward opening, the left side end wall of the working cavity is provided with a laterally therethrough first cavity, the bottom wall of the first cavity is providedwith a laterally therethrough second cavity, the rear side end wall of the working cavity is provided with a first transmission cavity, and the rear side end wall of the first transmission cavity isfixedly provided with a motor. The emergency blood sample collection box capable of being repeatedly used has the advantages that a blade can be automatically replaced after blood sample collection iscompleted, and the device automatically recycles the used blade so that the environment cannot be polluted by medical waste discarded anywhere, environmental protection is achieved, the automation degree of the device is high, and a new blade is automatically switched for blood sample collection, so that blood infection cannot be caused, and the safety and reliability are achieved; in addition, the device can circularly perform blood sample collection, thereby greatly reducing the operation steps of blood sample collection by a doctor, saving time, and improving the efficiency; the device canaccurately correspond collected blood samples to patients one to one, and a marking mode is more convenient and faster compared with a traditional marking mode.