The utility model relates to an intermittent driving device for an inner translational movement variable contour line cam, which comprises an enclosure, an end cap, a needle shell, a needle tooth sleeve, a locating plate, an input shaft and an output shaft, wherein the enclosure and the end cap are coaxially fixedly arranged in the radial direction; the locating plate is coaxially installed between the enclosure and the end cap; the end cap and the locating plate are coaxially provided with the input shaft; the enclosure and the input shaft are coaxially provided with the output shaft; the end part of the output shaft and the needle shell are coaxially and fixedly installed in the enclosure; and the needle tooth sleeve is coaxially installed in the enclosure between the enclosure and the locating plate. The intermittent driving device of the utility model has a simple integral structure and is stable and reliable to mechanically operate. When a machine is operated, the action of inertia force is effectively balanced, the stability and the reliability of the machine are improved, the mechanism service life is significantly prolonged, and the intermittent driving device has the advantages of larger transmission ratio and ideal effect. The parameterization design can be carried out, and the intermittent driving device is convenient for secondary development, is suitable for various occasions of different indexing requirements, and is suitable for various industrialized production requirements.