The dross removal apparatus and dross removal method using the same are disclosed. Dross removal apparatus of the present invention is that the incoming strip of steel sheet; Nawooteu switch to the incoming steel flowing through the strip, so that the surrounding air from the outside to the zinc plating bath; A sink roll formed to immersing the steel sheet that is fed out through the switch in Fig. Nawooteu amount of zinc; Rising roll stabilizer for stabilizing the steel sheet to the sink roll rough sikimyeo discharged to an upper zinc plating bath; Forming movable member which contains, the number of the scan nawooteu is, by adjusting the level in the up and down direction in its outer wall surface to move the slide reciprocating; and through the stabilizer rising roll air knife plating a steel sheet that is discharged to the upper portion, depending on coating weight do.