This creation is an air door with a plasma sterilization device. The air door includes a wind box with an air inlet and an air outlet, a motor and a set of linear fans respectively arranged in the wind box. The group stream fan is driven by the motor to rotate and blows air to the lower air outlet to generate an air curtain, wherein: the air outlet is provided with at least one plasma sterilization device, and the plasma sterilization device includes a plurality of grid plates arranged vertically at intervals. An electrode line arranged in parallel with the grid plate is arranged between two adjacent grid plates. After the plural electrode lines and grid plates are electrically connected to the positive and negative electrodes, a high-voltage electric field can be generated, which can be blown out from the air outlet through the plasma sterilization device The air curtain first eliminates and destroys dust mites, bacteria and viruses in the air through the high-voltage electric field, thereby avoiding the spread of bacteria and viruses in the air.本創作為一種具備電漿殺菌裝置的空氣門,該空氣門包含一具有進風口及出風口的導流風箱、分別設置在該導流風箱內的一馬達及一組線流扇,該組線流扇受馬達驅動轉動而向下方出風口送風產生空氣幕,其中:該出風口設有至少一電漿殺菌裝置,該電漿殺菌裝置包含複數片呈間隔豎立排列的柵極板,每兩相鄰柵極板之間設有一與柵極板平行排列的電極線,複數電極線及柵極板分別電連接正、負極後能夠產生高壓電場,使通過電漿殺菌裝置而由出風口吹出的空氣幕,先經過該高壓電場消滅及破壞空氣中的塵螨、細菌及病毒,藉此避免空氣中的細菌病毒擴散。