A device for handling traffic cones that may equip a vehicle, including a frame, a mechanism for transferring the cones from a provisioning unit to a handling station, a cone gripping unit, and mechanism for moving the gripping unit between the handling station and release points. The moving mechanism includes a lifting unit ensuring vertical movement for raising and lowering the gripping unit, a translation unit ensuring the transverse horizontal movement of the lifting unit and the gripping unit, the translation unit includes at least one first slider that includes a fixed part rigidly connected to the frame and a part that can move in translation, a second slider that includes a part rigidly connected to the movable part of the first slider and a second part that can move in translation.