Abstract: The control rod driving route was driven by movable electromagnetism loop, which operated on the one domestic new reactor. Rod-dropping experiment was carried out in order to test capabilities of the control rod driving route. The response of the movable electromagnetism loop outside the cylinder to the gag bit inside the cylinder and quick rod-dropping time in the condition of direct current broken and alternating current broken respectively were tested in the experiment. Transformation of rod-dropping time with friction mode between control rod oriented tube and control rod assemblies, and effect of sphere valve on the rod-dropping time were also studied. The results include the control rod driving route’s rod-dropping time under different conditions, influence factors, and so on, which would be reference for debugging and operation of the driving route.