The utility model relates to a linear drive unit, electronic equipment and a body ornament. Therefore, the touch feedback can be improved; and thus when an input operation is carried out, vibration is fed back by a finger or a control pen and the feeling of operation completion is transmitted to the operator. The linear drive unit comprises a driving shaft with axial displacement, a micro-vibration generation component, a frame body, and a moving body. The micro-vibration generation component is connected to one end of the driving shaft, so that the driving shaft makes the axial displacement; the frame body supports at least one of the driving shaft and the micro-vibration generation component, so that the driving shaft makes free displacement at the axial direction; and the moving body is movably connected with the driving shaft at the axial direction of the driving shaft on the basis of the axial displacement of the driving shaft and a protruding portion is formed at the front side of one end at the opposit
