The invention provides an efficient and continuous dyeing process method for textile fabric through wet-state steaming, which belongs to the fabric dyeing method. The process method comprises the following steps in sequence: fabric soaking in dyeing solution, bake-steaming for color fixation, water washing and drying and feeding. During the drying and feeding procedure, the humidity of mixed gas in the reaction steam box is 25-35 percent, the temperature of the mixed gas is 120-130 DEG C, the air volume of the mixed gas is 4m3/s, and the processing time is 2-3 minutes; the saturated vapor pressure is 0.15-0.2MPa; and during the water washing procedure, the content of the water softener B in lotion is 2-3g/L, and the rest is water. The dyeing process method shortens the process flow, thereby not only improving the production efficiency, but also saving the energy. In addition, compared with the traditional dyeing process, the dyeing process method has the advantages of high color fixing speed, high color fixing rate, bright color, no dye transfer, low alkali consumption, good reproducibility, good levelness, good penetration and the like. Therefore, the invention can be used for obtaining good washing-resistant and friction-resistant fastness.