The invention relates to a translational and rotational cam device. The translational and rotational cam device is mainly composed of a box, an input shaft, a space cam, an output shaft, a driven disk, a plurality of rollers and the like. The space cam is fixedly connected to the input shaft. The driven disk and the rollers are fixedly connected to the output shaft. The ridge side contour surface of the space cam makes contact with the rollers to push the driven disk and the output shaft to conduct rotation and translation. The two ends of the output shaft are supported in two bearing bushes through deep groove ball bearings. The bearing bushes are axially connected with the driven disk through thrust bearings. When the driven disk rotates, the output shaft rotates synchronously, and the bearing bushes keep motionless. When the driven disk conducts translation, the output shaft and the bearing bushes conduct translation synchronously. When the driven disk conducts rotation and translation, the output shaft conducts rotation and translation synchronously, and the bearing bushes only conduct translation. By designing different ridge side contour surfaces, rotational motion of the input shaft can be converted into single translation or single rotation or compound motion of translation and rotation of the output shaft, and continuous motion or intermittent motion of the output shaft can also be realized.