A continuous hot-dip metal coating method comprising: continuously immersing a steel strip into a molten metal bath (3, 4) and blowing gas from a gas wiping nozzle onto the steel strip immediately after the steel strip is withdrawn from the molten metal bath so as to control a coating weight, wherein a temperature T of wiping gas to be injected from the gas wiping nozzle is controlled on a basis of a D/B value, which is a ratio of a distance D between a tip of the gas wiping nozzle and the steel strip to a gap B of the gas wiping nozzle, wherein the temperature T of the wiping gas is controlled on a basis of the D/B value, wherein the D/B value is 60 or less, so as to be within a range of T M ∓100°C °C at an impinging position where the wiping gas impinges on the steel strip, where T M represents a melting point of molten metal in the molten metal bath (3, 4), and wherein the temperature T of the wiping gas is controlled so as to be within a range indicated by formula below: [Math. 1] c 1 D B − c 2 D B + T M − 100 ≦ T ≦ c 1 D B + c 3 D B + T M + 100 T: the temperature of the wiping gas to be injected from the gas wiping nozzle [°C] T M: the melting point of the molten metal [°C] D: the distance between the steel strip and the tip of the gas wiping nozzle [m] B: the gap of the gas wiping nozzle [m] c 1, c 2, and c 3: constants, wherein the constants c1, c2 and c3 depend on the size of the wiping nozzle gap B and the nozzle shape, and wherein the constants c1, c2 and c3 are determined preliminarily offline by setting a thermometer to a sheet surface simulating a steel strip, changing conditions for the D/B value and measuring the temperature to determine the values of c1, c2 and c3, wherein the temperature measured by the thermometer is assumed to be the temperature of the wiping gas at an impinging position where the wiping gas impinges on the steel strip, wherein the wiping gas injected from the gas wiping nozzle is an inert gas. continuously immersing a steel strip into a molten metal bath (3, 4) and blowing gas from a gas wiping nozzle onto the steel strip immediately after the steel strip is withdrawn from the molten metal bath so as to control a coating weight, wherein a temperature T of wiping gas to be injected from the gas wiping nozzle is controlled on a basis of a D/B value, which is a ratio of a distance D between a tip of the gas wiping nozzle and the steel strip to a gap B of the gas wiping nozzle, wherein the temperature T of the wiping gas is controlled on a basis of the D/B value, wherein the D/B value is 60 or less, so as to be within a range of T M ∓100°C °C at an impinging position where the wiping gas impinges on the steel strip, where T M represents a melting point of molten metal in the molten metal bath (3, 4), and wherein the temperature T of the wiping gas is controlled so as to be within a range indicated by formula below: [Math. 1] c 1 D B − c 2 D B + T M − 100 ≦ T ≦ c 1 D B + c 3 D B + T M + 100 T: the temperature of the wiping gas to be injected from the gas wiping nozzle [°C] T M: the melting point of the molten metal [°C] D: the distance between the steel strip and the tip of the gas wiping nozzle [m] B: the gap of the gas wiping nozzle [m] c 1, c 2, and c 3: constants, wherein the constants c1, c2 and c3 depend on the size of the wiping nozzle gap B and the nozzle shape, and wherein the constants c1, c2 and c3 are determined preliminarily offline by setting a thermometer to a sheet surface simulating a steel strip, changing conditions for the D/B value and measuring the temperature to determine the values of c1, c2 and c3, wherein the temperature measured by the thermometer is assumed to be the temperature of the wiping gas at an impinging position where the wiping gas impinges on the steel strip, wherein the wiping gas injected from the gas wiping nozzle is an inert gas.