The invention discloses a porous acupuncture needle, which comprises a needle body part for piercing human epidermis to acupuncture and an operating part held by a user. The needle body part comprises a needle body, a porous layer and a charge layer, wherein the porous layer is arranged on the surface of the needle body and consists of a plurality of micropores, and the charge layer is covered onthe surface of the porous layer. Therefore, when the porous acupuncture needle is used for acupuncturing, due to hydrophilicity produced by the charge layer, human tissues are easily attached to the needle body part; moreover, during twisting the needle, the surrounding tissues can be drawn through the porous layer so as to increase the stimulation on acupuncture points.