Based　on　SiO2-TiO2-MgO-FeO　slag　system,　a　great　deal　of　operative　performance　experiments　for　High　cellulose　covered　electrode　were　carried　out.　The　feature　of　metal　transfer　of　the　electrode　was　revealed.　The　results　showed　that　operative　performance　in　the　vertical　down　welding　can　be　improved　through　fine　droplet,　increasing　chemical　reactive　heat　in　arc　area,　raising　arc　blow　force.　Using　sodium　water　glass　with　super　low　mode,　carbonization　and　press　coating　problems　during　manufacture　can　be　solved.