Some optical cables will be laid in a relatively harsh environment and are laid down by rodents（mice

squirrels

birds

etc.）

which cause frequent incidents of communication interruption. At the same time

along with all kinds of disasters and accidents happen frequently

optical cable and other materials are used as combustion supporting materials

making the fire spread

affecting the operation of the lines

causing great economic losses. A kind of optical cable used in this paper is to add fire resistant

anti-mouse and bird-proof pecking function on the basis of common optical cable structure.