The invention relates to a cement foaming fireproof door and a manufacturing process thereof. The cement foaming fireproof door includes a fireproof door panel, a fireproof door core plate, a fireproof door back plate and fireproof glue. The fireproof door core plate comprises, by weight, 180-250 parts of magnesium oxide, 250-350 parts of magnesium chloride solutions, 0.5-4 parts of gypsum, 2-10 parts of cement foaming agents, 1-5 part of superfine carbon fiber, 0.5-5 parts of silica fume powder, 5-30 parts of coal ash and 1-7 part of assistants. The manufacturing process of the cement foamingfireproof door comprises the steps that (1) slurry of the fireproof door core plate is prepared; (2) gluing is carried out; (3) pouring is carried out; (4) hardening is carried out; (5) gluing is carried out; (6) pressing is carried out; and (7) maintenance is carried out. According to the cement foaming fireproof door and the manufacturing process thereof, the fireproof door core plate, the fireproof door panel and the fireproof door back plate are bonded more tightly and firmly, the phenomena of efflorescence and empty drum are eliminated effectively, the cost is reduced, the manufacturingprocess is simple, the fireproof thermal insulation performance is good, the mechanical strength is high and harmless to human bodies.