A plasma assisted high energy ball milling device, comprising: a vibrating high energy ball milling main engine in the form of a double-cylinder vibrating mill or an eccentric vibrating mill, an external cold field plasma power supply , a discharge ball milling tank comprising a connecting cylinder , a front cover , a rear cover , and a plasma power supply negative grounding electrode connected to the discharge ball milling tank , a discharge electrode bar in the form of a cylindrical rod, wherein the discharge electrode bar is composed of an inner conductive core and an outer insulation layer made of high purity alumina ceramic material; the inner conductive core , as an electrode for plasma discharge, is connected to a plasma power supply positive high-voltage electrode , and the outer insulation layer is present as a discharge dielectric barrier layer; a controllable atmosphere system and a cooling system , characterized in that : the inner conductive core is made of iron or copper; and wherein the device further comprises a metal sleeve with meshes, being located between the electrode bar and the ball milling tank , the grinding ball is located between the sleeve and the ball milling tank , the ball milling tank is connected to a negative electrode of the plasma power supply , and wherein the ball milling tank , the grinding ball and the sleeve are electrically connected and form an electrode of the plasma discharge. a vibrating high energy ball milling main engine in the form of a double-cylinder vibrating mill or an eccentric vibrating mill, an external cold field plasma power supply , a discharge ball milling tank comprising a connecting cylinder , a front cover , a rear cover , and a plasma power supply negative grounding electrode connected to the discharge ball milling tank , a discharge electrode bar in the form of a cylindrical rod, wherein the discharge electrode bar is composed of an inner conductive core and an outer insulation layer made of high purity alumina ceramic material; the inner conductive core , as an electrode for plasma discharge, is connected to a plasma power supply positive high-voltage electrode , and the outer insulation layer is present as a discharge dielectric barrier layer; a controllable atmosphere system and a cooling system , characterized in that : the inner conductive core is made of iron or copper; and wherein the device further comprises a metal sleeve with meshes, being located between the electrode bar and the ball milling tank , the grinding ball is located between the sleeve and the ball milling tank , the ball milling tank is connected to a negative electrode of the plasma power supply , and wherein the ball milling tank , the grinding ball and the sleeve are electrically connected and form an electrode of the plasma discharge. the inner conductive core is made of iron or copper; and wherein the device further comprises a metal sleeve with meshes, being located between the electrode bar and the ball milling tank , the grinding ball is located between the sleeve and the ball milling tank , the ball milling tank is connected to a negative electrode of the plasma power supply , and wherein the ball milling tank , the grinding ball and the sleeve are electrically connected and form an electrode of the plasma discharge. <EOS>