The invention discloses hydraulic moulded bag concrete using industrial solid waste, which is prepared by the processes of mixing crude aggregate, fine aggregate, cementing material, reinforcing fiber and water by stirring, injecting the mixture into a moulded bag, and the like, wherein weight portion and content range of the components comprise the following: 3 to 4 portions of the crude aggregate, 0.5 to 2 portions of the fine aggregate, and 1 portion of the cementing material, and the ratio of the water to the cementing material is 0.35 to 0.85; the reinforcing fiber is an additive, and the adding amount of the reinforcing fiber is 0.1 to 5 percent of the total weight of the cementing material; the crude aggregate is steel slag or tailings; the fine aggregate is tailing sand or coal ash coarse slag or river sand; and the cementing material consists of the steel slag, coal ash, silicate cement clinker, mineral slag, and alkaline excitation agent accounting for 0.1 to 3 percent of the total weight of the components, which are mixed and milled, or is formed by milling each component raw material of the cementing material and then mixing the milled raw materials. The hydraulic moulded bag concrete has the advantages of stronger construction performance, mechanical strength, underwater stability and low cost, and can be widely applied in the fields of processing, construction and the like of bank protection and dike strengthening materials for rivers, lakes and sea.