The invention discloses a method for manufacturing a marble grain imitation enamel decorating plate. The method comprises the following steps of: (1) decomposing a marble stripe pattern; (2) molding a thin steel plate; (3) firing a ground coat; (4) manufacturing an enamel fusion cake for later use; (5) manufacturing an enamel fundamental color plate; (6) manufacturing a silk-screening enamel basestock fusion cake for later use; (7) preparing silk-screening printing ink, decomposing a silk-screening colored pattern, printing on transfer paper, and sealing by using a film; and (8) adhering thetransfer paper onto the enamel fundamental color plate, firing, cooling, and then forming. The method has the advantages of making the marble grain imitation enamel decorating plate have enduring corrosion resistance and has a simple and natural artistic effect of marble material decoration; color paintings and material grain imitation pigments are all made of inorganic glass materials; and a pattern pigment and an enamel layer are tightly combined with each other after high-temperature fusion, so that the decorating plate has enduring corrosion resistance and weather resistance, ultra-high abrasion resistance and impact resistance and high fire resistance and installation convenience, and is attractive, decent, economic and environment-friendly.