Provided is an apparatus for producing a molten metal plated steel strip allowing a high-quality molten metal plated steel strip to be stably produced and preventing occurrence of defects on plated surfaces due to splash or top dross even when various changes are made to operational conditions. An apparatus (100) for producing a molten metal plated steel strip according to the present invention ischaracterized by having: a pair of gas wiping nozzles (20A, 20B) for adjusting the amount of deposits on both surfaces of a steel strip (P); a gas supply mechanism (22); a gas temperature adjusting mechanism (24); a baffle plate (26) disposed near an end section in the width direction of the steel strip (P) and located on a plane extended from the steel strip; a temperature sensor (28) disposed on at least one surface thereof; and a control unit (30) that controls the gas temperature adjusting mechanism (24) on the basis of an output of the temperature sensor (28).