Gas wiping nozzle and method for manufacturing molten metal plated metal strip

The invention provides a gas wiping nozzle and a method for manufacturing a molten metal plated metal strip. The gas wiping nozzle can uniformly maintain gaps in the width direction of a slit in the length direction even under a high-temperature atmosphere when the slit is manufactured in a divided mode in the length direction of the slit. In a gas wiping nozzle (10), a first nozzle member (11) and a second nozzle member (12) are each divided into two or more nozzle members (11A-11C) and (12A-12C) along the longitudinal direction (X) of a slit (14). When the thickness of the slit (14) of the first nozzle member (11) in the width direction Z is T1 and the thickness of the slit (14) of the second nozzle member (12) in the width direction Z is T2, the length of the dividing surface (20) in the cross section of each of the first nozzle member (11) and the second nozzle member (12) is 1.5 T1 or more with respect to the first nozzle member (11) and 1.5 T2 or more with respect to the second nozzle ...