Protective mask of surgical operation

A protective mask for a surgery is characterized in that a transparent protective thin plate is mounted in the middle of the face of an arched elastic support frame; tail ends of the support frame are connected with each other through a connection strap or a connector link; two transparent protective thin plate fixing columns with thread holes are symmetrically mounted on the face of the arched support frame; two apertures are formed at the upper part of the transparent protective thin plate correspondingly; and another two retaining screws are in screw connection with the protective thin plate fixing columns through the apertures on the transparent protective thin plate. The protective mask has the advantages of simple structure and low price, and facilitates extensive popularization and application. When the mask is in use, a fixing frame is directly arranged on forehead with convenience. The transparent protective thin plate is designed to be disposable in order to maintain high definition, and is convenie