This paper introduces a new fiber optic cable double sheath forming process.Double sheath a molding process compared with the traditional method,the merger of two production lines,through two sets of sheath equipment work at the same time do a molding,don't need to be similar to the traditional methods need to be repeated a sheath steps to second sheath of semi-finished products,to solve the traditional method of semi-finished products transportation difficulties and take up the turnover of location problem,not only can save a space,can save a lot of manpower,And the lack of scheduling saves time.