The invention discloses a manufacturing process of an inorganic fireproof coiled material and the inorganic fireproof coiled material, and the manufacturing process comprises the following steps: (a) preparing raw materials; (b) putting 1.3-2.5kg of coagulation accelerator, 7-10.5kg of flame retardant, 0.7-1.2kg of modified cellulose ether, 175-200kg of cement, 350kg of calcium carbonate powder, 300kg of 70-140-mesh first-level sand, 1.5-2.0kg of 6mm polypropylene fiber and 2.0-2.5kg of organic silicon waterproof agent in the step (a) into a stirring machine for stirring, and then performing 150-mesh filtration; (c) putting 150-200kg of acrylic acid emulsion and 0.5-0.8kg of liquid defoamer in the step (a) into a reaction kettle, starting to stir, performing mixing, and then performing the 70-mesh filtration; (d) mixing liquid which is well filtered in the step (c) with powder which is well filtered in the step (b) to get inorganic slurry; (e) spray-coating the inorganic slurry; and (f) performing the drying process. The inorganic fireproof coiled material comprises an upper inorganic slurry layer, a lower inorganic slurry layer and a non-woven fabric layer positioned between the upper inorganic slurry layer and the lower inorganic slurry layer, the fire resistance grade is high, and the adhesive force with other products is strong.