An article surface antibacterial coating is disclosed. An article is connected to the cathode in an aqueous solution and the anode is connected to an electrolyzed object in the aqueous solution. The direct current is conducted between the cathode and the anode. Through the DC constant-voltage supply, the electrons with positive charges will be flowing and migrating toward the cathode end, and a water-insoluble coating will be uniformly deposited on the article surface, such that the article surface is electroplated with a layer of antibacterial film with positive charges. The potential difference generated by the mutual attraction of electrostatic forces between the antibacterial film and bacteria may achieve the purpose of destroying bacterial cell walls, which will not reduce its effect along with the time, so as to provide the effect of continuous sterilization.一種物品表面抗菌塗層,該物品於水溶液內與陰極連接,而該陽極連接於水溶液內的被電解物,並於陽極與陰極之間導通有直流電,透過直流電源定電壓法使帶正電荷之電子向陰極端流動遷移,並於物品表面均勻沉積形成不溶於水的塗層,使物品表面電鍍有一層帶正電荷之抗菌皮膜,藉由抗菌皮膜與細菌之間的靜電力相互吸引而產生電位差,達到破壞細菌細胞壁之目的,且不會隨著時間而降低效果,俾以具有持續殺菌之功效。10‧‧‧物品30‧‧‧抗菌皮膜40‧‧‧細菌41‧‧‧細胞壁