The invention relates to a marking device. The marking device is used for marking workpieces. The marking device comprises a supporting frame as well as a lifting mechanism and a marking mechanism which are both arranged on the supporting frame; the marking device further comprises a laying mechanism and a reclaiming mechanism which are arranged on the supporting frame; and the lifting mechanism and the laying mechanism are both include a first driving component fixed on the supporting frame and a supporting assembly which is fixed on the first driving component, wherein and the reclaiming mechanism includes a pushing component which is slidingly arranged on the supporting frame and a reclaiming assembly fixed on the pushing component, wherein the pushing component can drive the reclaiming assembly to move towards the supporting assembly of the lifting mechanism or the supporting assembly of the laying mechanism.