The present invention, the coating material of the initially still liquid, for example a method and apparatus for coating metal strip with zinc. Coated metal strip in the coating passes through the roll pair. At this time, the one roll of the roll pair rolls, it is possible with those relative to the other roll, thereby making it possible to eliminate the undesirable warping of the metal strip. In order to avoid even when hit with a collection roll of rollers uneven thickness distribution of the coating on the metal strip is carried out, according to the present invention, by suitably moving the blowing device, blow devices and to set target intermediate position in the slit to adjust the actual position of the metal strip.