The invention relates to a production method of an electrical steel plate. The production method comprises the following steps of (1), converter-smelting of molten steel; (2), RH refining; (3), thin plate blank continuous casting and continuous rolling; (4), normalizing and pickling; (5), single rack cold-rolling; and (6), continuous annealing. Furthermore, the production method comprises the followings steps of: (7), coating; and (8), finishing. A cold-rolled non-orientated steel belt produced by the method disclosed by the invention is excellent in magnetic performance, low in production cost, and can satisfy needs of downstream motor uses. Moreover, the invention firstly discloses a manufacturing process for non-orientated electrical steel plate without a phase-change chemical component at home, which is produced by thin plate blank continuous casting and continuous rolling, so that the advantages of producing non-orientated electrical steel with lower iron loss and high magnetic conductivity by thin plate blank continuous casting and continuous rolling are brought into full play, and therefore, technical support is provided for producing a high-level plate belt product on a thin plate blank continuous casting and continuous rolling line. And meanwhile, a production range for thin plate blank continuous casting and continuous rolling process products is further expanded.